Introduce `--color-label-fg`, `--color-label-bg` and
`--color-label-hover-bg`, decoupling the label styles from other color
variables. I've set the colors so that non-interactive labels like on
tabs are dark-on-light on light theme, which imho looks better than
previous light-on-dark.
In the screenshot below, the leftmost label has hover, the second one
has active.
<img width="786" alt="Screenshot 2023-05-18 at 12 48 26"
src="https://github.com/go-gitea/gitea/assets/115237/d989bb68-504a-4406-b5f6-419ed9609f90">
<img width="789" alt="Screenshot 2023-05-18 at 13 04 07"
src="https://github.com/go-gitea/gitea/assets/115237/689a281a-a2b7-45e8-a5ee-dafb7a35e105">
---------
Co-authored-by: Giteabot <teabot@gitea.io>
Fix regression from https://github.com/go-gitea/gitea/pull/23481.
The conditional on the CSS import was being stripped away by webpack's
`css-loader`, resulting in the dark theme always loading. The old syntax
with `@import` nested inside `@media` also did not work as `css-loader`
(rightfully) ignores such non-standard `@import` syntax that was
previously supported by Less.
Unfortunately, we have to re-introduce postcss to the CSS pipeline to
fix this and I loaded only the minimal plugins to make it work.
There is one variant of the fix that does work without postcss, which is
to exclude the file from transpilation but I did not consider it as it
would have meant the `@import` was being done without a version suffix
in the URL, which would have caused cache issue.
Related: https://github.com/webpack-contrib/css-loader/issues/1503
---------
Co-authored-by: John Olheiser <john.olheiser@gmail.com>
Ran most of the Less files through the Less compiler and Prettier and
then followed up with a round of manual fixes.
The Less compiler had unfortunately stripped all `//` style comments
that I had to restore (It did preserve `/* */` comments). Other fixes
include duplicate selector removal which were revealed after the
transpilation and which weren't caught by stylelint before but now are.
Fixes: https://github.com/go-gitea/gitea/issues/15565
