[libadwaita] (6 commits) Non-fast-forward update to branch wip/exalm/lists-style

[Alexander Mikhaylenko <alexm src gnome org>]

The branch 'wip/exalm/lists-style' 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:

  0950791... stylesheet: Simplify list styles
  b4950c2... stylesheet: Remove blue from view selections
  d4a76f3... stylesheet: Fix places sidebar dnd style
  973b5a0... stylesheet: Fix indentation in treeview styles

Commits added to the branch:

  b75d9fa... stylesheet: Simplify list styles
  63b3130... stylesheet: Remove blue from view selections
  8489b21... stylesheet: Fix places sidebar dnd style
  285c71d... stylesheet: Fix indentation in treeview styles
  f21570b... stylesheet: Remove a treeview checkbutton special case
  4f69d9d... stylesheet: Remove 2 unused variables