[libadwaita] (19 commits) Non-fast-forward update to branch wip/exalm/menu-split-buttons

[Alexander Mikhaylenko <alexm src gnome org>]

The branch 'wip/exalm/menu-split-buttons' 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:

  6f587b1... preferences-group: Hide the list by default
  934b0c7... stylesheet: Stop using insensitive_[bf]g_color
  eee6360... stylesheet: Inline button colors
  db10ae3... stylesheet: Remove @content_view_bg and @text_view_bg
  e9da34f... stylesheet: Move old public colors to _compat-colors.scss
  1e8e69e... stylesheet: Add back colors like theme_selected_bg_color as
  bf7de96... stylesheet: Use dark_fill for the scrollbar bg color
  833470e... stylesheet: Use opacity for scrollbar slider states
  832a14c... stylesheet: Inline scrollbar colors
  a5f5b61... stylesheet: Remove insensitive osd entry style
  539046e... stylesheet: Simplify osd color
  da721a6... stylesheet: Redo osd buttons
  0ce1b6b... stylesheet: Fix caret color
  2086755... stylesheet: Remove a redundant insensitive style from calen
  0edcfe5... stylesheet: Use opacity for entry icons
  ce7832a... stylesheet: Simplify tree headers
  686abb3... stylesheet: Remove unused mixins
  a516af7... stylesheet: Remove .content-view
  2a1a460... stylesheet: Redo GtkExpander hover
  d651495... stylesheet: Refactor .content row colors
  593b95c... stylesheet: Update .content row hover/active
  c5747d7... stylesheet: Explicitly set color in popovers
  cb8951e... stylesheet: Apply headerbar border opacity separately
  b2fb1ee... stylesheet: Explicitly reset flat header bar color
  afa9705... stylesheet: Derive menubar separator color from text
  f0bec5f... Rework .content list style
  d501187... stylesheet: Remove notebook tab.reorderable-page style
  604418d... stylesheet: Use currentColor for notebook tab hover
  ddb75b6... stylesheet: Stop using scss functions for tab bar styles
  b3e19d4... stylesheet: Stop using scss functions for treeview styles
  31af895... a
  21e312c... Restore button colors
  99b6f5c... squeezer: Fix the threshold policy doc links
  f9815e6... Added Lithuanian translation
  b499519... Czech translation
  2090c1f... Add Galician translation
  7a01878... stylesheet: Update menu button style
  917eb8b... Add AdwSplitButton
  6d2621f... Add AdwButtonContent
  fd2b023... stylesheet: Remove separator margin for non-menu popovers
  4dbebe2... stylesheet: Extract style for raised buttons
  aa3aaa1... stylesheet: Use toolbar style for header bars and action ba
  7a9468b... stylesheet: Reset toolbar styles for popovers
  3504fca... stylesheet: Make GtkWindowControls buttons filled
  b2920f2... stylesheet: Make image buttons square
  d1b656b... stylesheet: Specificity bump for spinbutton buttons
  1cc6f6e... view-switcher-button: Set spacing in css and match buttons
  80747cb... stylesheet: Add separator.spacer
  3674f11... doc: Mention the flat button changes in the migration guide
  34fef00... example: Add a split button+button content page
  2024212... stylesheet: Make any arrow buttons and split buttons flat a

Commits added to the branch:

  3f76263... squeezer: Fix the threshold policy doc links (*)
  04bf2cf... Added Lithuanian translation (*)
  36e690f... Czech translation (*)
  ca9256a... Add Galician translation (*)
  907ae0f... stylesheet: Update menu button style (*)
  6eee9ae... Add AdwSplitButton (*)
  af2be5a... Add AdwButtonContent (*)
  0cd2703... stylesheet: Remove separator margin for non-menu popovers (*)
  f1b5704... stylesheet: Extract style for raised buttons (*)
  21336a5... stylesheet: Use toolbar style for header bars and action ba (*)
  f92e0ed... stylesheet: Reset toolbar styles for popovers (*)
  6502e96... stylesheet: Make GtkWindowControls buttons filled (*)
  2c0c15b... stylesheet: Make image buttons square (*)
  44dc0b3... stylesheet: Specificity bump for spinbutton buttons (*)
  be21dd5... view-switcher-button: Set spacing in css and match buttons (*)
  035456d... stylesheet: Add separator.spacer (*)
  2218040... doc: Mention the flat button changes in the migration guide (*)
  df50f94... example: Add a split button+button content page (*)
  62728c8... stylesheet: Make any arrow buttons and split buttons flat a

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