[gtk] (55 commits) Non-fast-forward update to branch wip/chergert/quartz4u

[Christian Hergert <chergert src gnome org>]

The branch 'wip/chergert/quartz4u' 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:

  7d395e6... build: fix linking support on macOS with Clang
  5c944a8... build: squash various warnings with Clang
  06e141e... build: do not use static libepoxy on macOS
  3a2a028... build: add ATK fallback subproject wrapper
  7d03bf1... gdk: disable file transfer portal on macOS
  2ec6900... macos: prototype new GDK backend for macOS

Commits added to the branch:

  130bd59... docs: Add guidance about list model performance (*)
  0e476c1... gtk-demo: Don't use GtkColorSwatch (*)
  96ce0eb... Merge branch 'matthiasc/for-master' into 'master' (*)
  cb906c8... inspector: Drop the recorder Private struct (*)
  9ffd7d1... inspector: Dispose the recorder properly (*)
  af30a7f... inspector: Dispose tree data properly (*)
  314c855... inspector: Properly dispose GtkInspectorListData (*)
  ca784e3... inspector: Properly dispose GtkInspectorShortcuts (*)
  6b19fcd... inspector: Properly dispose GtkInspectorWindow (*)
  facf78a... inspector: Allow disposing the inspector (*)
  1bff328... inspector: Clean up GtkInspectorLogs (*)
  2de31e4... inspector: Clean up GtkInspectorActionEditor (*)
  dbd88fc... inspector: Clean up GtkInspectorActions (*)
  26163a4... inspector: Clean up GtkInspectorVisual (*)
  80e29a3... inspector: Clean up GtkInspectorMiscInfo (*)
  7c02ae0... inspector: Clean up GtkInspectorGeneral (*)
  6b59626... gtk: Improve g-i annotations for methods of GtkExpression s (*)
  4da3edd... Merge branch 'wip/ricotz/annotations' into 'master' (*)
  899024c... editablelabel: Add a style class while editing (*)
  c7833bb... editablelabel: Document css nodes (*)
  77072b3... fixup editing style class (*)
  287d80b... editablelabel: Stop editing on focus-out (*)
  76d80ef... inspector: Add focus handling to the property editor (*)
  2e2336f... text: Claim clicks when grabbing focus (*)
  7b76be5... button: Add explicit key bindings for activation (*)
  9b64635... Merge branch 'matthiasc/for-master' into 'master' (*)
  c64a021... NEWS: Updates (*)
  75a30b1... windowhandle: Don't use an action muxer needlessly (*)
  b5e20a3... Merge branch 'matthiasc/for-master' into 'master' (*)
  86c7fce... Merge branch 'list-model-docs' into 'master' (*)
  378e594... Tweak the GTK_DEBUG=help output (*)
  95fc81c... inspector: Add a few more debug flags (*)
  5df1356... gsk: Remove an unused debug flag (*)
  0c15463... Merge branch 'matthiasc/for-master' into 'master' (*)
  aa76f7e... Speed up action muxer setup (*)
  ab67a81... Speed up action muxer setup more (*)
  07e8daf... inspector: Remove action support temporarily (*)
  14bb121... actionmuxer: Add some more api (*)
  4786a16... actionmuxer: Port internal users (*)
  96d42cf... actionmuxer: Stop implementing GActionGroup (*)
  9b294eb... Add gtk_action_muxer_list_actions (*)
  14059af... inspector: Make the actions tab work again (*)
  05e614f... actionmuxer: Create observed_actions and groups on demand (*)
  ed92026... actionmuxer: Use an array for accels (*)
  486fbce... actionmuxer: Update docs and clean up headers (*)
  d9ece94... ci: Switch ASAN tests to runners tagged so (*)
  ee9c6bb... Merge branch 'action-muxer-speedup' into 'master' (*)
  852429d... Merge branch 'barthalion/asan-runner' into 'master' (*)
  9b647a4... inspector: Make picking objects show them (*)
  d66ac49... Merge branch 'matthiasc/for-master' into 'master' (*)
  7884ab6... build: fix linking support on macOS with Clang
  514b622... build: squash various warnings with Clang
  add47be... build: add ATK fallback subproject wrapper
  0154a7f... gdk: disable file transfer portal on macOS
  9dbf99d... macos: prototype new GDK backend for macOS

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