[libadwaita] (9 commits) Non-fast-forward update to branch wip/exalm/button-fix

[Alexander Mikhaylenko <alexm src gnome org>]

The branch 'wip/exalm/button-fix' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  4a59554... stylesheet: Fix .osd button states

Commits added to the branch:

  63d2d67... Add Serbian translation (*)
  1842082... doc: Drop modules we're not likely to use from urlmap (*)
  5a1a41e... doc: Use docs.gtk.org links instead of GitLab pages (*)
  d698b07... doc: Add glib and friends to urlmap (*)
  9d18aab... doc: Link to glib types where possible (*)
  4c6eda8... split-button: Add missing Since: 1.0 comments (*)
  5cac616... stylesheet: Use bottom border for boxed list rows (*)
  951666b... stylesheet: Remove redundant boxed list rules (*)
  198e559... stylesheet: Fix .osd button states

(*) This commit already existed in another branch; no separate mail sent