[libadwaita] (2 commits) Non-fast-forward update to branch wip/exalm/view-stack

[Alexander Mikhaylenko <alexm src gnome org>]

The branch 'wip/exalm/view-stack' 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:

  84aa3c1... view-stack: Add add_titled_with_icon()

Commits added to the branch:

  e351779... stylesheet: Remove unnecessary transitions (*)
  5263b54... view-stack: Add add_titled_with_icon()

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