[libadwaita] (46 commits) Non-fast-forward update to branch wip/exalm/borderless

[Alexander Mikhaylenko <alexm src gnome org>]

The branch 'wip/exalm/borderless' 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:

  a1f46b8... Revert "stylesheet: Use darker headerbar for focused window
  f880bf3... Revert "Revert "stylesheet: Restore a backdrop state for he
  e0a16eb... Revert "Revert "stylesheet: Add back a backdrop state for A
  c0a3ef6... Add AdwSplitButton
  a95ecdb... stylesheet: Use toolbar style for header bars and action ba
  2e936a7... stylesheet: Reset toolbar styles for popovers
  081e036... stylesheet: Make GtkWindowControls buttons filled
  6601d98... stylesheet: Make image buttons square
  5191a59... example
  6ba6b30... stylesheet: Drop an unused variable
  ff2a949... stylesheet: Remove alt border color
  58ec9cf... stylesheet: Stop using $borders_color for overshoot
  70cee88... stylesheet: Replace solid-csd border with an inset shadow
  12ede36... a
  a221445... stylesheet: Make sure header bar borders have contrast
  dd4c74d... Padding fixes

Commits added to the branch:

  e37f685... action-row: Remove typo (*)
  51563f1... action-row: Remove unnecessary unparent (*)
  7bf2290... Use non-deprecated license identifier (*)
  80a908b... meson: Use correct SPDX identifier (*)
  bb657d8... stylesheet: Drop an unused variable (*)
  4f63b27... stylesheet: Remove alt border color (*)
  5035066... stylesheet: Stop using $borders_color for overshoot (*)
  1f13876... stylesheet: Replace solid-csd border with an inset shadow (*)
  05c180a... stylesheet: Stop using $dark_fill for notebook hover (*)
  7362e3e... stylesheet: Make dark_fill not depend on border color (*)
  8094893... stylesheet: Remove insensitive_borders_color (*)
  a93e1c5... stylesheet: Increase opacity on HC trough colors (*)
  3fe0d30... stylesheet: Remove $treeview_borders_color (*)
  c0ed244... stylesheet: Use regular $borders_color for separators (*)
  e9146ab... stylesheet: Fix legacy file chooser dialog border (*)
  4646b08... stylesheet: Simplify entry border (*)
  7947946... stylesheet: Use regular $borders_color for lists (*)
  8db67cf... stylesheet: Remove a few redundant &s (*)
  dd5f178... stylesheet: Stop using $borders_color for HC switches (*)
  9ec3854... stylesheet: Replace scrollbar border with an inset box-shad (*)
  5225f5d... stylesheet: Use box-shadow instead of border for toolbars (*)
  8bdb26e... stylesheet: Overhaul header bar and tab bar borders (*)
  43d1689... stylesheet: Add background-clip: padding-box where we use b (*)
  1463f38... stylesheet: Use recolorable half-transparent borders (*)
  7b84584... animation: Refactor adw-animation into a GObject (*)
  943fb62... Fixes (*)
  392da6a... fixes (*)
  8c31695... reorder getters/setters (*)
  aadcce5... Use non-deprecated license identifier See https://spdx.org/ (*)
  e7b03bd... stylesheet: Support headerbar.flat (*)
  9ebea39... preferences: fix typo in property name (*)
  a15784f... header-bar: Adjust heights (*)
  3b43f1e... demo: Simplify the split header bar layout (*)
  1ca6321... stylesheet: Softer window shadows (*)
  9f176be... Fix 2 animation build warnings (*)
  7ece82b... Revert "stylesheet: Use darker headerbar for focused window
  6be9c12... Revert "Revert "stylesheet: Restore a backdrop state for he
  2711508... Revert "Revert "stylesheet: Add back a backdrop state for A
  54bc646... Add AdwSplitButton
  a213440... stylesheet: Use toolbar style for header bars and action ba
  1ef539c... stylesheet: Reset toolbar styles for popovers
  9817089... stylesheet: Make GtkWindowControls buttons filled
  d8c9fc0... stylesheet: Make image buttons square
  18d92d7... example
  663c9c6... Revert "stylesheet: Make buttons bold"
  81dfa91... Outline buttons

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