Enable `no-sizzle` lint rule, there was only one use in `initCompReactionSelector` and:

- Remove all jQuery except the necessary fomantic dropdown init
- Remove the recursion, instead bind event listeners to common parent container nodes

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Giteabot <teabot@gitea.io>

1. add border-radius and spacing to bars
2. use tailwind background classes
3. Add more space around activity list headers

<img width="983" alt="Screenshot 2024-03-27 at 23 40 54"
src="https://github.com/go-gitea/gitea/assets/115237/70f72c30-e69f-4ecb-882f-32b8bc94d638">
<img width="1020" alt="Screenshot 2024-03-27 at 23 41 02"
src="https://github.com/go-gitea/gitea/assets/115237/a35dbbda-515c-40b0-938a-d759f9686b8e">

Fixes: https://github.com/go-gitea/gitea/issues/29438

This contains numerous enhancements for how large commit messages and
large filenames render. Another notable change is that the file path is
no longer cut off by backend at 30 chars, but rendered in full with
wrapping.

<img width="1329" alt="Screenshot 2024-04-09 at 21 53 57"
src="https://github.com/go-gitea/gitea/assets/115237/5ccbb3d6-643a-4f60-ba79-3572b36d5182">
<hr>
<img width="711" alt="Screenshot 2024-04-09 at 21 44 24"
src="https://github.com/go-gitea/gitea/assets/115237/6ffe8fbb-407c-4aa7-b591-3d80daea7d57">
<hr>
<img width="439" alt="Screenshot 2024-04-09 at 21 19 03"
src="https://github.com/go-gitea/gitea/assets/115237/1ec7f6e9-2fd8-4841-87eb-6ca02ab9cd61">
<hr>
<img width="444" alt="Screenshot 2024-04-09 at 21 18 52"
src="https://github.com/go-gitea/gitea/assets/115237/70931b9e-5841-477e-b3bc-98f8d2662964">

---------

Co-authored-by: Giteabot <teabot@gitea.io>

Not sure exactly when this regressed, but has been a while I think.

Before:

<img width="895" alt="Screenshot 2024-04-08 at 22 46 50"
src="https://github.com/go-gitea/gitea/assets/115237/9b1788f8-017e-4fe1-8ab9-938e0d76fb41">

After:

<img width="689" alt="Screenshot 2024-04-08 at 23 00 58"
src="https://github.com/go-gitea/gitea/assets/115237/90193df9-5c24-4a1a-96fe-3d4e8392063c">

Co-authored-by: Giteabot <teabot@gitea.io>

1. The previous color contrast calculation function was incorrect at
least for the `#84b6eb` where it output low-contrast white instead of
black. I've rewritten these functions now to accept hex colors and to
match GitHub's calculation and to output pure white/black for maximum
contrast. Before and after:
<img width="94" alt="Screenshot 2024-04-02 at 01 53 46"
src="https://github.com/go-gitea/gitea/assets/115237/00b39e15-a377-4458-95cf-ceec74b78228"><img
width="90" alt="Screenshot 2024-04-02 at 01 51 30"
src="https://github.com/go-gitea/gitea/assets/115237/1677067a-8d8f-47eb-82c0-76330deeb775">

2. Fix project-related issues:

- Expose the new `ContrastColor` function as template helper and use it
for project cards, replacing the previous JS solution which eliminates a
flash of wrong color on page load.
- Fix a bug where if editing a project title, the counter would get
lost.
- Move `rgbToHex` function to color utils.

@HesterG fyi

---------

Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: Giteabot <teabot@gitea.io>

Before:
<img width="162" alt="Screenshot 2024-04-05 at 02 25 27"
src="https://github.com/go-gitea/gitea/assets/115237/9f786811-3e45-4b3c-aaf9-e1d2cad284d2">

After:
<img width="172" alt="Screenshot 2024-04-05 at 02 27 25"
src="https://github.com/go-gitea/gitea/assets/115237/f5254877-9e0d-44cb-9605-ba15c75872bb">

Remove most jQuery function calls

---------

Signed-off-by: Yarden Shoham <git@yardenshoham.com>
Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

Tailwind does not support. Dropped the vendor-prefix.

Co-authored-by: Giteabot <teabot@gitea.io>

Get rid of one more jQuery dependant and have a nicer color picker as
well.

Now there is only a single global color picker init because that is all
that's necessary because the elements are present on the page when the
init code runs. The init is slightly weird because the module only takes
a selector instead of DOM elements directly.

The label modals now also perform form validation because previously it
was possible to trigger a 500 error `Color cannot be empty.` by clearing
out the color value on labels.

<img width="867" alt="Screenshot 2024-03-25 at 00 21 05"
src="https://github.com/go-gitea/gitea/assets/115237/71215c39-abb1-4881-b5c1-9954b4a89adb">
<img width="860" alt="Screenshot 2024-03-25 at 00 20 48"
src="https://github.com/go-gitea/gitea/assets/115237/a12cb68f-c38b-4433-ba05-53bbb4b1023e">

Before:

![image](https://github.com/go-gitea/gitea/assets/18380374/f6b3728c-ed9a-4e47-8755-89373235dff2)

After:

![image](https://github.com/go-gitea/gitea/assets/18380374/272c85e3-620d-4758-ae4d-ad90b54e142c)

If repo is a mirror, external user's name will be white, but if user is
existed, then you will see blue names and white names together:

![image](https://github.com/go-gitea/gitea/assets/18380374/747622da-56e3-4162-b391-919787a8cee4)

---------

Co-authored-by: silverwind <me@silverwind.io>

1. Restore missing styles for message close icon
2. Move `code-line-button` so that it does not go off-screen on small
viewports
3. Make `code-line-button` look and behave like other buttons
4. Make `code-line-button` work in blame
5. Make the active selection span the whole line, not just the code part
6. Tweak colors, make dark theme code bg darker, make line numbers same
color in diff and file view.
7. Move code background to parent, fixing border radius and other
problems
8. Enable code wrap in blame
9. Improve blame responsiveness
10. Remove `--color-code-sidebar-bg` in blame, now it uses same
background as code
11. Rename `--color-active-line` to `--color-highlight-bg`
12. Add `--color-highlight-bg`
13. Fix button group borders on hover and border-right on last button.

<img width="1343" alt="Screenshot 2024-03-23 at 22 34 13"
src="https://github.com/go-gitea/gitea/assets/115237/fcbb919f-5dc3-43f0-97f6-870d6f412554">
<img width="1334" alt="Screenshot 2024-03-23 at 22 34 26"
src="https://github.com/go-gitea/gitea/assets/115237/ca44c3b7-4328-4645-ba49-b0dc6a5ac06d">

<img width="1338" alt="Screenshot 2024-03-23 at 22 34 57"
src="https://github.com/go-gitea/gitea/assets/115237/00eb0b5a-1ec7-4669-a94a-4602b9d1c1ac">
<img width="1337" alt="Screenshot 2024-03-23 at 22 34 42"
src="https://github.com/go-gitea/gitea/assets/115237/752edc4a-064f-413c-9dff-c086187fcd85">

Fixes: https://github.com/go-gitea/gitea/issues/18074

Fixes: https://github.com/go-gitea/gitea/issues/29981. Introduce
`.secondary-nav` as a universal way for styling and margin adjustments
inside `.page-content`.

If the first child of `.page-content` is `.secondary-nav`, we add margin
below it, otherwise we add padding to the first child. Notable changes:

- `--color-header-wrapper` is replaced with `--color-secondary-nav-bg`.
- `navbar` class is removed.

---------

Co-authored-by: Giteabot <teabot@gitea.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

1. The borders were doubled on the "empty" page, fix it.
2. Remove unnecessary CSS classes like "clone", "compact", etc
3. Use CSS class "clone-panel" instead of ID "clone-panel"
4. Use `tw-flex-1` instead of `gt-f1`
5. Remove unnecessary ID "more-btn"

as followup of the not jet finished discussion at
https://github.com/go-gitea/gitea/pull/29680#discussion_r1521867261

we enhance and chat about how best to highlight archived labels here :)

---------

Co-authored-by: silverwind <me@silverwind.io>

Relate:[#27417](https://github.com/go-gitea/gitea/issues/27471)
Reference:  [#26631](https://github.com/go-gitea/gitea/pull/26631)

Before


![image](https://github.com/go-gitea/gitea/assets/37935145/88ca8da5-25dd-4f60-bea8-a80107f19cc5)

After


![image](https://github.com/go-gitea/gitea/assets/37935145/3cb180dc-1331-43e9-8633-be5e288401e8)

---------

Co-authored-by: silverwind <me@silverwind.io>

The modal was broken in two ways:

- On small screens, the input box was partially hanging outside the
modal. Fixed with flexbox and increased modal width.
- The clipboard copy was not working because the modal had both
`data-clipboard-text` and `data-clipboard-target`, while we only support
one of those. Made a small tweak in clipboard as well so that it will
still fall back to target if text is empty.

1. Add `<overflow-menu>` web component
2. Rename `<gitea-origin-url>` to `<origin-url>` and make filenames
match.

<img width="439" alt="image"
src="https://github.com/go-gitea/gitea/assets/115237/2fbe4ca4-110b-4ad2-8e17-c1e116ccbd74">

<img width="444" alt="Screenshot 2024-03-02 at 21 36 52"
src="https://github.com/go-gitea/gitea/assets/115237/aa8f786e-dc8c-4030-b12d-7cfb74bdfd6e">

<img width="537" alt="Screenshot 2024-03-03 at 03 05 06"
src="https://github.com/go-gitea/gitea/assets/115237/fddd50aa-adf1-4b4b-bd7f-caf30c7b2245">


![image](https://github.com/go-gitea/gitea/assets/115237/0f43770c-834c-4a05-8e3d-d30eb8653786)


![image](https://github.com/go-gitea/gitea/assets/115237/4b4c6bd7-843f-4f49-808f-6b3aed5e9f9a)

TODO:

- [x] Check if removal of `requestAnimationFrame` is possible to avoid
flash of content. Likely needs a `MutationObserver`.
- [x] Hide tippy when button is removed from DOM.
- [x] ~~Implement right-aligned items
(https://github.com/go-gitea/gitea/pull/28976)~~. Not going to do it.
- [x] Clean up CSS so base element has no background and add background
via tailwind instead.
- [x] Use it for org and user page.

---------

Co-authored-by: Giteabot <teabot@gitea.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

Before:

![image](https://github.com/go-gitea/gitea/assets/18380374/795f9941-9989-4045-b0fc-d6dd0262269b)

![image](https://github.com/go-gitea/gitea/assets/18380374/f6505f5e-4248-456e-a98d-e714c6484b2f)

After:

![image](https://github.com/go-gitea/gitea/assets/18380374/321dda1e-6999-4851-afff-2e6c8d20367b)

![image](https://github.com/go-gitea/gitea/assets/18380374/182f18d1-2295-4004-852b-c0ebb498b411)

---------

Co-authored-by: silverwind <me@silverwind.io>

the issue is, that you can not distinguish between normal and archived
labels.

So this will make archived labels 80% **grayscale**. And prepend
"Archived: " to the tooltip info


![image](https://github.com/go-gitea/gitea/assets/24977596/fd77c4d2-eff5-4afd-9bfa-19cb9991c5e7)

![image](https://github.com/go-gitea/gitea/assets/24977596/2e0f30e5-f301-4c9c-8e9f-677298d90b27)

![image](https://github.com/go-gitea/gitea/assets/24977596/53d70abf-b306-453d-aa95-a3a035b19a33)

![image](https://github.com/go-gitea/gitea/assets/24977596/6020e5f5-2364-4807-979f-37dffa8735e5)


---
*Sponsored by Kithara Software GmbH*

---------

Co-authored-by: delvh <dev.lh@web.de>

Before:

<img width="1332" alt="Screenshot 2024-03-06 at 21 42 17"
src="https://github.com/go-gitea/gitea/assets/115237/0ea07eee-31f8-4783-bd56-37bd8396f00d">

After:
<img width="1336" alt="Screenshot 2024-03-06 at 21 41 58"
src="https://github.com/go-gitea/gitea/assets/115237/eb7f9cc9-587f-4e3b-92bd-cc67ca639963">

Follow #29418

I think using "flex-wrap: wrap" here is better than hard-coding the screen width.

By using "flex-wrap: wrap", the UI layouts automatically for various
widths (even if in some languages, the sentence might be pretty long)

Fixes #29189.

This is the result after the fix at a width of 768 pixels.

![圖片](https://github.com/go-gitea/gitea/assets/30816317/626d06b3-fd5b-4392-84e1-1191c965aff5)

1. Tweak diff header and remove a numbe of unneeded CSS for it:

Before:
<img width="433" alt="Screenshot 2024-02-18 at 01 08 09"
src="https://github.com/go-gitea/gitea/assets/115237/d8b377c0-57bc-44d5-bb57-a582c7d4b3b4">

After:
<img width="463" alt="Screenshot 2024-02-18 at 01 07 56"
src="https://github.com/go-gitea/gitea/assets/115237/d08c17e7-5b86-4d07-81da-6371f4754325">

3. Reduce height of review textarea and also reduce fomantic's CSS from
12em to 8em. Now fits better on my screen:

<img width="1352" alt="image"
src="https://github.com/go-gitea/gitea/assets/115237/5c658d13-295e-4929-94da-13ade888020d">

---------

Co-authored-by: delvh <dev.lh@web.de>

This border-radius is obsolete since we changed the comment rendering a
few months ago and it caused incorrect display on blockquotes.

Before:
<img width="160" alt="Screenshot 2024-02-10 at 18 42 48"
src="https://github.com/go-gitea/gitea/assets/115237/ccbf4660-acf9-4268-aad9-1ad49d317a67">

After:
<img width="135" alt="Screenshot 2024-02-10 at 18 42 40"
src="https://github.com/go-gitea/gitea/assets/115237/6f588e02-3b2a-49ee-b459-81d8068b2f4e">

I tripped over this strange method and I don't think we need that
workaround to fix the value.

old:

![grafik](https://github.com/go-gitea/gitea/assets/1666336/c8b6797b-eb45-4dec-99db-1b0649a34ec5)

new:

![grafik](https://github.com/go-gitea/gitea/assets/1666336/ab1a65ae-de5b-4ce4-9813-3b8b39c7922e)

---------

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

If you view a file, you can now see the latest commit that changed that file.

![grafik](https://github.com/go-gitea/gitea/assets/15185051/272c3120-6db7-4f88-86e1-60080c9aabe5)

---------

Co-authored-by: Denys Konovalov <kontakt@denyskon.de>

Redesign repo header with following new aspects:
- responsive & better-looking repo title
- hide repo button text instead of icons in mobile view
- use same tab style as on explore and org page

<details>
<summary>Before:</summary>


![grafik](https://github.com/go-gitea/gitea/assets/47871822/57360b77-d43c-49ac-b798-2363c03da7ec)

![grafik](https://github.com/go-gitea/gitea/assets/47871822/d4117f79-a5f5-4f36-bf65-bbada3e7e73b)

![grafik](https://github.com/go-gitea/gitea/assets/47871822/e26f967f-e264-4337-9925-3d942e04fd6d)

![grafik](https://github.com/go-gitea/gitea/assets/47871822/b4683c8d-9c6a-4089-afa7-8dd219e43a46)


</details>

<details>
<summary>After:</summary>


![grafik](https://github.com/go-gitea/gitea/assets/47871822/8ddbc9f6-53c7-4e4e-bea9-704fd93524ca)

![grafik](https://github.com/go-gitea/gitea/assets/47871822/c0588aa9-788d-469c-98a0-81484fbd220c)

![grafik](https://github.com/go-gitea/gitea/assets/47871822/206e931e-404d-4d1b-92ce-908698addfcc)

![grafik](https://github.com/go-gitea/gitea/assets/47871822/a508f9c8-fadc-4a85-94ba-18796f77e07b)

Close https://github.com/go-gitea/gitea/issues/28522

~Adds some [negative
margin](https://tailwindcss.com/docs/margin#using-negative-values)
helper css classes using tailwind's [prefix
syntax](https://tailwindcss.com/docs/configuration#prefix)~

### Before

![image](https://github.com/go-gitea/gitea/assets/12700993/5bdabf91-facd-41c8-8e36-e1535beb9409)

### After

![image](https://github.com/go-gitea/gitea/assets/12700993/a6f11f6f-9e64-45b6-b9d7-dfea53fbc6d7)

the gt-df's display:flex !important did override the display:none on small displays

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

1. Show diff stats only on large screens

these are already shown in tabs, so no need for this duplicate
information on small screens


![image](https://github.com/go-gitea/gitea/assets/1135157/1287839d-7490-42eb-a17e-d526dc0bfd9e)

![image](https://github.com/go-gitea/gitea/assets/1135157/e9dcd89d-ed4d-4945-a7aa-4e6fc6d9c3a2)


2. Hide viewed files information on small screens

Github does the same and this gives us more free space on small screens


![image](https://github.com/go-gitea/gitea/assets/1135157/e90b042f-fffb-4f79-a5ae-cd480c9d8334)

![image](https://github.com/go-gitea/gitea/assets/1135157/d2480ffe-58f2-4694-8ae1-a2ab0aae14d4)


3. Review bar now doesn't wrap so we don't need the 77px even on very
small screens

(the sticky headers are still working)


![image](https://github.com/go-gitea/gitea/assets/1135157/42b19b2b-73ef-4b88-8680-c555879b363b)

In #25315, @denyskon fixed UI on mobile view.
But for the repo description, on desktop view there's no word-break. 
So maybe we can just add `gt-word-break` to fix it on both mobile view
and desktop view.

Before:
desktop view:

![image](https://github.com/go-gitea/gitea/assets/18380374/a7659f5b-fbe9-400a-8cc2-cca44778556e)
mobile view:

![image](https://github.com/go-gitea/gitea/assets/18380374/611f1b81-58ac-4213-b165-5c73e24ca79e)

After:
desktop view:

![image](https://github.com/go-gitea/gitea/assets/18380374/f21bf3a7-f6aa-457d-9bfa-5c57659c68b1)
mobile view(almost same?)

![image](https://github.com/go-gitea/gitea/assets/18380374/ad2d1a4d-1172-402c-b5fc-5e910657847d)

---------

Co-authored-by: silverwind <me@silverwind.io>

Fix #27928

---------

Co-authored-by: silverwind <me@silverwind.io>

Step one for a GitHub like commit status check ui:

![image](https://github.com/go-gitea/gitea/assets/18380374/22953b88-1f91-4d19-bc57-ad92d33fa11f)

![image](https://github.com/go-gitea/gitea/assets/18380374/78572a49-c9b0-472b-86a8-8293197e807b)

![image](https://github.com/go-gitea/gitea/assets/18380374/bc5c8d1c-2ab5-4b03-b8c6-20c34b86d856)

Step two:

![image](https://github.com/go-gitea/gitea/assets/18380374/938b359e-8823-4192-b82d-55fa40b986fd)

![image](https://github.com/go-gitea/gitea/assets/18380374/2de5bb8f-40f5-462a-8d6d-bac13a32bc2a)

The design now will list all commit status checks which takes too much
space.
This is a pre-improve for #26247

---------

Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

Fixes: https://github.com/go-gitea/gitea/issues/27784

<img width="1033" alt="Screenshot 2023-10-25 at 19 07 15"
src="https://github.com/go-gitea/gitea/assets/115237/1a363851-1a86-48cb-99ec-0a573371bb6e">
<img width="1051" alt="Screenshot 2023-10-25 at 19 07 41"
src="https://github.com/go-gitea/gitea/assets/115237/add4b606-2264-430a-af35-249ef005817f">

Co-authored-by: KN4CK3R <admin@oldschoolhack.me>

Fix #24318

Before:

![image](https://github.com/go-gitea/gitea/assets/18380374/38282e5e-0b4d-4568-a853-59352798e826)

![image](https://github.com/go-gitea/gitea/assets/18380374/79d89ee6-61f6-45a7-af0b-d1c23fead25a)

![image](https://github.com/go-gitea/gitea/assets/18380374/39b45fae-52e2-4697-b83a-7cd10f76ac43)

After:

![image](https://github.com/go-gitea/gitea/assets/18380374/09e8cfcf-0150-494e-9f63-0868f529da65)

![image](https://github.com/go-gitea/gitea/assets/18380374/d2c348d3-fe03-466a-a5f4-878b7a93a318)

![image](https://github.com/go-gitea/gitea/assets/18380374/7f75b807-300c-42d5-b2c3-bae9e45e3c08)

![image](https://github.com/go-gitea/gitea/assets/18380374/06eca901-f5cf-4100-bb65-92457ad106e3)

Before (almost no gap between files):
<img width="1240" alt="Screenshot 2023-10-24 at 19 43 32"
src="https://github.com/go-gitea/gitea/assets/115237/30cdbdbc-d102-479c-89ce-3f68837ae0cd">

After (with 8px gap):
<img width="1241" alt="Screenshot 2023-10-24 at 19 43 22"
src="https://github.com/go-gitea/gitea/assets/115237/72b26a30-8730-4a36-8de9-be143b684b98">

The current language stats are too obsessed with color matching. Similar
colors are always next to each other. It is a bit troublesome to find
the place where the color matching is generated, so just follow the
example of github and add a gap.

## before

<img width="883" alt="image"
src="https://github.com/go-gitea/gitea/assets/12915306/cf54430c-616c-4b37-b561-5a37c20b2d94">

## after

<img width="877" alt="image"
src="https://github.com/go-gitea/gitea/assets/12915306/e518ea36-2b8f-4f11-a867-a58dc393db85">

Fixes: https://github.com/go-gitea/gitea/issues/27604

Add negative margins so the header covers any shadow of active elements.
No rendering change of the content of the header because the padding
counteracts the effect.

<img width="128" alt="image"
src="https://github.com/go-gitea/gitea/assets/115237/3d0f55b6-9351-4985-a290-da9a92d15b4e">

Closes https://github.com/go-gitea/gitea/issues/27358

Fixes #3852
Fixes https://github.com/go-gitea/gitea/issues/26707

Add a button on file history which directs you to the file at the
selected commit.

Co-authored-by: silverwind <me@silverwind.io>

Followup  https://github.com/go-gitea/gitea/pull/26820
## Archived labels UI for issue filter and issue filter actions for
issues/pull request pages.

Changed:
* Enhanced the Issue filter and Issue filter actions UI page to
seamlessly incorporate a list of archived labels.
* Pagination functionality is same as before. If archived label checkbox
is checked then we are adding a query string`archived=true` in the url
to save the state of page.
* Issue filter actions menu is separated into different template.
* Adding the archived flag in issue url labels.
* Pull Request page is also work the same.

Outsourced:
* Defer the implementation of specialized handling for archived labels
to upcoming pull requests. This step will be undertaken subsequent to
the successful merge of this pull request.

Screenshots
### Issue page
<img width="1360" alt="image"
src="https://github.com/go-gitea/gitea/assets/80308335/d7efb2ef-5b2b-449d-83f0-d430a32ec432">

### Issue page with label filter on archived label checkbox when not
checked --> No archived label is there in list
<img width="1249" alt="image"
src="https://github.com/go-gitea/gitea/assets/80308335/ceea68ef-91f2-4693-910f-2e25e236bfc9">

### Issue page with label filter on archived label checkbox when checked
--> Show archived label in the list.
<img width="710" alt="image"
src="https://github.com/go-gitea/gitea/assets/80308335/2414d26b-2079-4c3c-bd9e-f2f5411bcabf">

### Issue page with label filter on issue action menu on archived label
checkbox when checked --> Show archived label in the list.
<img width="409" alt="image"
src="https://github.com/go-gitea/gitea/assets/80308335/259cac87-3e21-4778-99a2-a6a0b8c81178">


### Applied the archived=true in Issue labels when archived checkbox is
checked.
<img width="984" alt="image"
src="https://github.com/go-gitea/gitea/assets/80308335/657ce3db-c0ae-402e-b12d-3b580d3c2ed0">

---




Part of https://github.com/go-gitea/gitea/issues/25237

---------

Signed-off-by: puni9869 <punitinani1@hotmail.com>
Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: Giteabot <teabot@gitea.io>

Close #26730


1. The `diff-detail-box` was abused, it shouldn't be used for
"DiffFileList/DiffFileTree".
2. Fix the sticky position for various screens.



![image](https://github.com/go-gitea/gitea/assets/2114189/558a5c06-c94c-4e5c-8395-d38473dd21c2)


![image](https://github.com/go-gitea/gitea/assets/2114189/3390fb0e-7dc7-457f-bd0c-398fdb6d24c0)


![image](https://github.com/go-gitea/gitea/assets/2114189/d19dd350-aecf-4909-8ef9-73b09d94560e)

Fix #27313 (see the comment)

And some UI improvements:

### Before


![image](https://github.com/go-gitea/gitea/assets/2114189/420a314d-8f34-4e30-a557-f41cf4f0d2f2)


![image](https://github.com/go-gitea/gitea/assets/2114189/60ca0be4-b55e-4e65-be73-fd53e0d4fc36)


### After


![image](https://github.com/go-gitea/gitea/assets/2114189/d354f815-5a0c-4e63-8d59-d03ed344dbea)


![image](https://github.com/go-gitea/gitea/assets/2114189/6ef437a4-aa6f-4917-a260-00625ee71e79)


![image](https://github.com/go-gitea/gitea/assets/2114189/9d88a36c-616b-4dc9-8c6b-76adaad8acf6)

Fix #27166

* Fix a regression from #26809 (the `data-org` is missing)
* Remove unnecessary style

Screenshots:


![image](https://github.com/go-gitea/gitea/assets/2114189/3f5cf628-db7f-4705-898a-7a4a1fbfbba8)


![image](https://github.com/go-gitea/gitea/assets/2114189/453d1fad-1090-4524-bf45-6c5da2465f04)


![image](https://github.com/go-gitea/gitea/assets/2114189/f14d9808-7596-42c8-84b4-0d57a0bf2278)

Before:

* The layout is quite complex 
* The UI flickers when switch the stats (https://try.gitea.io/)

After:

* Simplify the code
* The UI doesn't flicker

Fix #26931

The changes for "commit-body" in #26877 are not ideal.

The reason is: the "commit-body" is usually a `<pre>`, it has default
margins. In most cases, we do not need that large margin. So, this PR
introduces a general but small margin for all "commit-body" elements.
Then these `gt-m-0` could be removed.

The `:not` selector is not needed, because the `.timeline-item` selector
is already clear enough.

Replace  #26850

Major changes:

1. Remove all `has` selectors, it is still not supported by firefox.
Actually there could be some more general and clearer approaches
2. Remove `two-toggle-buttons`, the `.ui.buttons` just works well
3. Rewrite the `.ui.buttons` border styles, see the screenshots
4. Remove the "fine-tuning" paddings from the the flex children, they
could layout themselves well.

![image](https://github.com/go-gitea/gitea/assets/2114189/a32ed6f3-60f7-43d5-9492-62c45d2397f6)

![image](https://github.com/go-gitea/gitea/assets/2114189/5cb173c5-c942-4237-8cb4-2697220b3f06)

![image](https://github.com/go-gitea/gitea/assets/2114189/8a1c12b3-a632-48ff-b1a7-a01a4417f821)

![image](https://github.com/go-gitea/gitea/assets/2114189/46bde1bd-9113-4231-965d-6ec9076f6a3b)

The old code used complex `if` blocks and strange HTML layouts.

<details>


![image](https://github.com/go-gitea/gitea/assets/2114189/7fbee2b8-d150-4e6b-b67e-83400fa290eb)

</details>

This PR refactors the template code and remove legacy CSS styles. The UI
doesn't change much.



![image](https://github.com/go-gitea/gitea/assets/2114189/3e195df9-0ab5-4182-bcb2-bb20cad823f2)


![image](https://github.com/go-gitea/gitea/assets/2114189/f707a49f-be41-4dfe-871f-2869f2230380)