* modernize js and use babel

- add babel toolchain to transform modern JS to ES5
- extend eslint config for modern rules
- fixes linting issues via `eslint --fix` and manual fixes

* run 'make css' to satisfy CI

* code style tweaks and set js indendation to 2 in .editorconfig

* regenerate js

* Theme arc-green: reverse heatmap colors

This uses the same colors as the updated palette in the base theme.

See #8709 and #5864, in particular [my comment showing the problem](https://github.com/go-gitea/gitea/issues/5864#issuecomment-462334171)

* Rebuild CSS

* Use link color as hot, interpolate between hot and cold colors

* Use color from a:hover

* [arc-green] white on hover for active menu items

Actually, hovered active menu elements are in an unreadable black text colour.
This should be changed to white.

* [arc-green] white on hover for active menu items
Actually, hovered active menu elements are in an unreadable black text colour.
This should be changed to white.

Now editing less files and commiting with `make css`.

- Fixes double line-numbers and padding in Explore > Code > Search
- Moved code-view specific CSS out of their parents to share those
styles better.
- Fix misc issues discovered in code,diff and blame view, especially for
the dark theme.

Also did various tweaks to label hover and dark theme.

Fixes: https://github.com/go-gitea/gitea/pull/5487

* issue view - fix icon position

- move style from template to css
- add bullets to: key, circle-slash, comment

Signed-off-by: Michael Gnehr <michael@gnehr.de>

* add border to symbols

Signed-off-by: Michael Gnehr <michael@gnehr.de>

* fix circle slash position

Signed-off-by: Michael Gnehr <michael@gnehr.de>

* fix top margin

Signed-off-by: Michael Gnehr <michael@gnehr.de>

* changed mixed space/tab indent to tabindent only

Signed-off-by: Michael Gnehr <michael@gnehr.de>

* cut timeline length with last element on issue view

fix #7304

- lightly enlight dark theme issue timeline color

Signed-off-by: Michael Gnehr <michael@gnehr.de>

* remove new container

Signed-off-by: Michael Gnehr <michael@gnehr.de>

* Add commit statuses reports on pull view

* Add some translations

* improve the UI

* fix fmt

* fix tests

* add a new test git repo to fix tests

* fix bug when headRepo or headBranch missing

* fix tests

* fix tests

* fix consistency

* fix tests

* fix tests

* change the test repo

* fix tests

* fix tests

* fix migration

* keep db size consistency

* fix translation

* change commit hash status table unique index

* remove unused table

* use char instead varchar

* make hashCommitStatusContext private

* split merge section with status check on pull view ui

* fix tests; fix arc-green theme on pull ui

* add dark theme for jquery xdsoft_datetimepicker

Signed-off-by: Michael Gnehr <michael@gnehr.de>

* add border to dark theme - not checked issue checkboxes

Signed-off-by: Michael Gnehr <michael@gnehr.de>

* modify dark codemirror theme

fix #6573

Signed-off-by: Michael Gnehr <michael@gnehr.de>

* add selection color

Signed-off-by: Michael Gnehr <michael@gnehr.de>

New CSS linter which is much more powerfull than the previous one.
Configuration is default but I had to remove a few rules that were
throwing too many or weird errors.

More importantly, the linter will exit with code 1 on errors so now our
build will fail if the CSS linter fails which should eliminate linter
errors being introduced without notice.

* fix extra newlines when copying from diff

See https://bugzilla.mozilla.org/show_bug.cgi?id=1273836

Basically, the <pre><code> seems to add a forced newline that is not
possible to get rid of via CSS, so I replaced it with just a <code>.

Secondly, .lines-type-marker also forced a newline in the copied text,
but that was possible to get rid of via user-select.

Safari still has a extraneous newline in the copied text of unknown
origin, but this should not block stop this PR.

* simplify .line-type-marker

* fix selector

* remove erronous ^^^

* Fix empty split diff

* Fix arc-theme-green

* fix add comment

* ensure line-num is copied too

* Update templates/repo/diff/box.tmpl

Co-Authored-By: zeripath <art27@cantab.net>

* attempt to fix safari via removing <code>

* remove useless whitespace at the end of 'class'

* remove inter-tag whitespace for code <td>s

* more inter-tag removal

* final inter-tag removal

* attempt to fix empty line copy

* move and comment getLineContent

* fix golint

* make background grey for missing added code

* fix colors in dark theme - tables inside rendered markdown

Signed-off-by: Michael Gnehr <michael@gnehr.de>

* fix colors in dark theme - simpleMDE rendered preview

Signed-off-by: Michael Gnehr <michael@gnehr.de>

* Update public/less/themes/arc-green.less

remove scroll bar color, to add this globally on additional PR

Co-Authored-By: Lauris BH <lauris@nix.lv>
Signed-off-by: Michael Gnehr <michael@gnehr.de>

* add missing class name

Signed-off-by: Michael Gnehr <michael@gnehr.de>

* Remove all CommitStatus when a repo is deleted

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Minor UI tweaks (#5782)
Added 'No License' option
Added link and octicon change for external issue trackers
Reset password now notifies right away if the code is invalid

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* More UI tweaks
More info in PR

* Generate stylesheet for arc-green

* Make gofmt work

* Change PR integration since the button is changed

* Rebase

* Generate stylesheet

* UI updates
Made the PR button a "basic" button
Vertically centered the issue checkboxes
Labels will update only once after modal is closed

* Commit to reference related issues
Resolves #5782
Resolves #5861
Addresses original question in #5993

* Change the comment wording since PR button is no longer little and green.

* Revert changes that made Windows work

* Regenerate stylesheet

* Regenerate stylesheets

* make generate-stylesheets

* Update integration again, changed button style

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Added ID to PR button
Changed integration to use the ID to avoid breaking in the future

* Added missing semi-colons

* Added back distinction between issue actions and filters (overlooked it before)
Moved action button over next to other action dropdowns

* Remove extra tab formatting in list.tmpl

* Remove more formatting from GoLand

* Replace hardcoded "No License" with i18n license helper.

* fix fading menu in arc-green theme

the menu faded white because it missed proper styling.
only visible on viewports narrower than 1200px.

* Generate minimized css

* compiled arc-green.less to apply changes from 76e4f9a58

* Code review UI improvements

* More fixes to dark theme

* Style fix

* Fix to allow add code review comments only on review files tab

* More readability dark style fixes

* Fix commenting on deleted files. Fixes #4752

* Fix line blame getting for multiple corner cases

* Resolve some issues with Arc Green

* Fix editor styles

* zeebra stripes

* generate CSS file

This makes it easier for user who want to theme but
don't have the ability to know how to customize templates
all that is required is a change in a config option

The reason why I chose the DEFAULT_THEME as variable,
as perhaps in the future we will allow users to chose their
theme whon logged in just like we do with languages