This adds links to download a directory as archive. This can be useful if you e.g. just want to download a assets directory instead of the full source tree. The logic already exists in the backend, so only the frontend had been changed.

Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/4736
Reviewed-by: 0ko <0ko@noreply.codeberg.org>
Co-authored-by: JakobDev <jakobdev@gmx.de>
Co-committed-by: JakobDev <jakobdev@gmx.de>
the test file used has a size below the default threshold and will
never be compressed because of that, regardless of its extension. Reduce
the threshold to 10 bytes otherwise the test is a false positive.
Co-authored-by: silverwind <me@silverwind.io>
(cherry picked from commit be112c1fc30f87a248b30f48e891d1c8c18e8280)
Conflicts:
routers/web/web.go
trivial conflict because of https://codeberg.org/forgejo/forgejo/pulls/1533