[gtk] (65 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:

  46d9644... macos: start on macos GDK backend

Commits added to the branch:

  6ae01f9... docs: Remove redundant SECTION (*)
  68682dd... docs: Remove unnecessary SECTION (*)
  58774ee... docs: Add annotations for GtkPaned new getters (*)
  09ea880... printoperation-unix: Fix a use-after-free (*)
  8053981... Merge branch 'docs-fixes' into 'master' (*)
  c916221... Merge branch 'matthiasc/for-master' into 'master' (*)
  f858a26... NEWS: Updates (*)
  694daa1... Move print-editor to demos (*)
  c133db4... Drop the gtkgears test (*)
  e7bf4a3... tests: Move testcairo into gtk4-demo (*)
  fe6238d... tests: Drop the visuals test (*)
  a37dc29... paned: Drop the Private struct (*)
  b230ea2... paned: Don't ignore the type attribute (*)
  a4debec... Merge branch 'tests-cleanup' into 'master' (*)
  9c13bf7... Merge branch 'matthiasc/for-master' into 'master' (*)
  c66f2ca... x11: Avoid a critical in clipboard data transfer (*)
  8d9a3de... Merge branch 'matthiasc/for-master' into 'master' (*)
  aedc956... renderboder: Ignore transparent outlines (*)
  ef2af52... widget: Remove size allocate signal enum member (*)
  167c611... widget: Move adjusted size calculation below early-out goto (*)
  949eb8d... node-editor: Monitor file and reload on changes (*)
  b9ed957... gl renderer: Fix nested rounded clip rendering (*)
  f78c167... cssvalue: Add class check to transition (*)
  9e0bf35... paned: Fix up the docs once more (*)
  fcbc972... print-editor: Fix crash (*)
  fede7cd... gtk-demo: Fix expander demo (*)
  a02c588... gtk-demo: InfoBar is not a GtkBox anymore (*)
  8a7fb4b... widget: Make 1 if out of 2 ifs (*)
  ddaf50d... window: Create constraint solver on demand (*)
  a50bf27... main: Inline propagate_{down,up} in propagate_internal() (*)
  9149c79... window: Restructure gtk_window_destroy() (*)
  8dfdd68... Merge branch 'print-editor-new-crash' into 'master' (*)
  10813dd... Merge branch 'gtk-demo-expander-fix' into 'master' (*)
  ab148c0... Merge branch 'wip/baedert/for-master' into 'master' (*)
  fa784aa... Cosmetics (*)
  cbc2493... Update Japanese translation (*)
  d0c54c1... Update Japanese translation (*)
  3bf6bda... demo: Remove double borders from the treeview (*)
  69ee1e1... Adwaita: use thinner arrows for navigation (*)
  4ed062e... Merge branch 'wip/jimmac/menu-styling-adjustments' into 'ma (*)
  51ec0f1... Merge branch 'wip/exalm/ocd' into 'master' (*)
  aae0770... scale: Make the area around the trough clickable (*)
  deef018... tests: Drop testtoolbar2 (*)
  c3aeac1... tests: Drop testpixbuf-scale (*)
  1420e84... tests: Drop testicontheme (*)
  604f4cf... tests: Drop testcolorchooser2 (*)
  b0fcf64... tests: Drop testbox (*)
  d1134e7... Merge branch 'usable-scales' into 'master' (*)
  b8e905e... tests: Drop testcolorchooser (*)
  a375c41... tests: Drop testfontchooser (*)
  dc8c371... tests: Drop testexpander (*)
  25577e4... tests: Drop testnoscreen (*)
  8e6ec0b... tests: Fix scrolling performance test (*)
  10be40a... scrolledwindow: Fix swapping out child (*)
  e87bc3d... gtk-demo: Plug a memory leak (*)
  15e7bf5... Merge branch 'matthiasc/for-master' into 'master' (*)
  c165890... Merge branch 'tests-cleanup' into 'master' (*)
  da2368a... macos: start on macos GDK backend
  556a276... macos: fix event destination comparison
  77dc16f... macos: add helper when surface is raised
  6ba64d6... macos: track when surface is raised
  4591f24... macos: always make key window when presenting
  1fb0f85... macos: update x,y when moving surface
  bf82d8b... macos: make popup surfaces key
  a140cd4... macos: always discover target surface

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