I realized only today that the implementation does not match the specs. It's too
late to figure out if there's a good reason for this or if that was a mistake.

What's implemented is good enough, so I'm adjusting the code to match it.

This list was primarily built while working on
https://salsa.debian.org/tails-team/gitlab-migration/issues/30,
which was a good opportunity to identify repositories
that we link to.

If we don't migrate them all, we'll need to special-case the non-migrated ones
in tails.git as they're linked to via the tails_gitweb* ikiwiki shortcuts.
Doing that work would likely take more time than migrating the repos,
so let's do it.

In passing, I'm removing a few obsolete ones.

In passing, remove a few unused ones.

GitLab: document the "Start thread" alternative to "Comment" (Closes: tails-team/gitlab-migration#15)

We now allow reviewers to delete suggestions.

wiki/src/about/staging/home.ar.po: updating as wiki/src/about/staging/home.de.po has changed.
wiki/src/about/staging/home.ca.po: updating as wiki/src/about/staging/home.de.po has changed.
wiki/src/about/staging/home.id.po: updating as wiki/src/about/staging/home.de.po has changed.
wiki/src/about/staging/home.pl.po: updating as wiki/src/about/staging/home.de.po has changed.
wiki/src/about/staging/home.ru.po: updating as wiki/src/about/staging/home.de.po has changed.
wiki/src/about/staging/home.sr_Latn.po: updating as wiki/src/about/staging/home.de.po has changed.
wiki/src/about/staging/home.tr.po: updating as wiki/src/about/staging/home.de.po has changed.
wiki/src/about/staging/home.zh.po: updating as wiki/src/about/staging/home.de.po has changed.
wiki/src/about/staging/home.zh_TW.po: updating as wiki/src/about/staging/home.de.po has changed.

wiki/src/about/staging/about.ar.po: updating as wiki/src/about/staging/about.de.po has changed.
wiki/src/about/staging/about.ca.po: updating as wiki/src/about/staging/about.de.po has changed.
wiki/src/about/staging/about.id.po: updating as wiki/src/about/staging/about.de.po has changed.
wiki/src/about/staging/about.pl.po: updating as wiki/src/about/staging/about.de.po has changed.
wiki/src/about/staging/about.ru.po: updating as wiki/src/about/staging/about.de.po has changed.
wiki/src/about/staging/about.sr_Latn.po: updating as wiki/src/about/staging/about.de.po has changed.
wiki/src/about/staging/about.tr.po: updating as wiki/src/about/staging/about.de.po has changed.
wiki/src/about/staging/about.zh.po: updating as wiki/src/about/staging/about.de.po has changed.
wiki/src/about/staging/about.zh_TW.po: updating as wiki/src/about/staging/about.de.po has changed.
wiki/src/about/staging/home.ar.po: updating as wiki/src/about/staging/home.de.po has changed.
wiki/src/about/staging/home.ca.po: updating as wiki/src/about/staging/home.de.po has changed.
wiki/src/about/staging/home.id.po: updating as wiki/src/about/staging/home.de.po has changed.
wiki/src/about/staging/home.pl.po: updating as wiki/src/about/staging/home.de.po has changed.
wiki/src/about/staging/home.ru.po: updating as wiki/src/about/staging/home.de.po has changed.
wiki/src/about/staging/home.sr_Latn.po: updating as wiki/src/about/staging/home.de.po has changed.
wiki/src/about/staging/home.tr.po: updating as wiki/src/about/staging/home.de.po has changed.
wiki/src/about/staging/home.zh.po: updating as wiki/src/about/staging/home.de.po has changed.
wiki/src/about/staging/home.zh_TW.po: updating as wiki/src/about/staging/home.de.po has changed.