[libadwaita] (20 commits) Non-fast-forward update to branch wip/exalm/background-colors

[Alexander Mikhaylenko <alexm src gnome org>]

The branch 'wip/exalm/background-colors' 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:

  edd111c... stylesheet: Remove a redundant rule from treeview
  7eca585... stylesheet: Simplify needs-attention indicator
  4c834e8... stylesheet: Use accent_color for needs attention indicator
  2e3084d... stylesheet: Simplify transition shadow
  affc942... a
  8a18ad9... a

Commits added to the branch:

  a6fa47f... Add Occitan translation (*)
  d24fae0... carousel: Null check child when scrolling (*)
  b442a80... stylesheet: Refresh level bar style (*)
  706bff5... stylesheet: Refresh progress bar size (*)
  5cf3c63... combo-row: Have .has-open-popup style class as appropriate (*)
  3ac7c98... stylesheet: Disable active for .has-open-popup list rows (*)
  ffcabbb... stylesheet: Unify menu and dropdown styles (*)
  ffe0c4f... combo-row: Switch to the .menu popover style (*)
  264310c... stylesheet: Remove popover.combo style (*)
  bdf1f8f... stylesheet: Remove a redundant rule from treeview
  e648cec... stylesheet: Simplify needs-attention indicator
  46c0cdf... stylesheet: Use accent_color for needs attention indicator
  80e6203... stylesheet: Simplify transition shadow
  3521f00... stylesheet: Don't vary infobar color between light and dark
  8ec9a6b... stylesheet: Make drop target color follow accent
  b7519c9... stylesheet: Extract window border and outline colors
  d631d56... stylesheet: Drop $alt_focus_border_color
  4dcd3e6... stylesheet: Remove an if() from tab bar styles
  48e8c62... stylesheet: Remove an if() from color swatches
  8764e44... a

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