Backport #28302 by @yp05327

Close #28287

## How to test it in local
convert Makefile L34 into:
```
cd .tmp/upstream-docs && git clean -f && git reset --hard && git fetch origin pull/28302/head:pr28302 && git switch pr28302
```

Co-authored-by: yp05327 <576951401@qq.com>

Backport #27291 by @silverwind

Previously, the production build never output sourcemaps. Now we emit
one file for `index.js` because it is the most likely one where we need
to be able to better debug reported issues like
https://github.com/go-gitea/gitea/issues/27213. This will currently
increase the binary size of gitea by around 700kB which is what the
gzipped source map file has.

Also, I fixed the CSS sourcemap generation which was broken since the
introduction of lightningcss.

The chinese docs are machine-translated, please correct accordingly.

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

Update part of the documents, translate English to Chinese.

This PR cleans up the docs in a way to make them simpler to ingest by
our [docs repo](https://gitea.com/gitea/gitea-docusaurus).

1. It includes all of the sed invocations our ingestion did, removing
the need to do it at build time.
2. It replaces the shortcode variable replacement method with
`@variable@` style, simply for easier sed invocations when required.
3. It removes unused files and moves the docs up a level as cleanup.

---------

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

## Compile & Cross Compile Gitea With CGO Dependencies Using Zig

---------

Co-authored-by: Jason Song <i@wolfogre.com>

This was intended to be a small followup for
https://github.com/go-gitea/gitea/pull/23712, but...here we are.

1. Our docs currently use `slug` as the entire URL, which makes
refactoring tricky (see https://github.com/go-gitea/gitea/pull/23712).
Instead, this PR attempts to make future refactoring easier by using
slugs as an extension of the section. (Hugo terminology)
- What the above boils down to is this PR attempts to use directory
organization as URL management. e.g. `usage/comparison.en-us.md` ->
`en-us/usage/comparison/`, `usage/packages/overview.en-us.md` ->
`en-us/usage/packages/overview/`
- Technically we could even remove `slug`, as Hugo defaults to using
filename, however at least with this PR it means `slug` only needs to be
the name for the **current file** rather than an entire URL
2. This PR adds appropriate aliases (redirects) for pages, so anything
on the internet that links to our docs should hopefully not break.
3. A minor nit I've had for a while, renaming `seek-help` to `support`.
It's a minor thing, but `seek-help` has a strange connotation to it.
4. The commits are split such that you can review the first which is the
"actual" change, and the second is added redirects so that the first
doesn't break links elsewhere.

---------

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

For Docusaurus, it needs a meta data named `sidebar_position`, so we
copy all `weight` under `menu/sidebar` as top meta key.

Duplicate parentheses written in link.

Signed-off-by: Xinyu Zhou <i@sourcehut.net>
Co-authored-by: Lauris BH <lauris@nix.lv>

reslove
https://github.com/go-gitea/gitea/issues/21627#issuecomment-1303678781

This patch:
- Rename some files( `.md` to `.en-us.md`), fix missed translation copy
- Update link which shoud be refer to `../hacking-on-gitea/` instead of
`../make/` (outdated)
- Update `_redirects`:
  -  redirect `/{zh-cn|fr-fr}/make/` to `../hacking-on-gitea/`
  - redirect `/zh-cn/third-party-tools/` to `/zh-cn/integrations/`
- Delete duplicated/outdated files.
- Update menu `weight` of developers.zh-cn.md

Signed-off-by: Xinyu Zhou <i@sourcehut.net>

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

Add `markdownlint` linter and fix issues. Config is based on the one
from electron's repo with a few rules relaxed.

Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: Lauris BH <lauris@nix.lv>

Also adjusted other version mentions so go version is always mentioned
as major.minor and node only as major.

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

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

* Remove more explicit 'generate' calls

`generate` is now implicit during `build` since #9114, it is no longer
necessary or desired to specify it explicitely.

* add js,css,generate dependencies to release task

* remove generate warning as per @lunny

* add warnging on docs

* fix docs

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

* Remove tidb reference from docs

* Update from-source.fr-fr.md

* Update from-source.zh-cn.md

* Update from-source.zh-tw.md

* import docs into main repository

Signed-off-by: Matti Ranta <matti@mdranta.net>