It has always been largely used for showcasing UI elements but that name didn't work too well for it.
Testing:
Some of existing tests depend on these pages, making it redundant to create extra tests.
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/11019
Reviewed-by: Michael Kriese <michael.kriese@gmx.de>
Reviewed-by: Gusted <gusted@noreply.codeberg.org>
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
