[gtk] (19 commits) Non-fast-forward update to branch container-focus-cleanup

[Matthias Clasen <matthiasc src gnome org>]

The branch 'container-focus-cleanup' 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:

  581cad9... Move set_focus_child to GtkWidget
  cd7b348... container: Cosmetic doc cleanup
  f8e98af... Move the idle sizer to GtkWidget
  8b2c103... wip: move the layout callbacks to gtkwindow.c

Commits added to the branch:

  3c987f0... Remove GdkGeometry from public API (*)
  70fed08... Remove GdkGeometry from public API (*)
  7f3125f... Some minor documentation fixes (*)
  a3de542... Merge branch 'matthiasc/for-master' into 'master' (*)
  bc7da45... docs: Restructure a bit (*)
  0b6af3b... Add GtkCenterLayout to the docs (*)
  dbf12d8... Add GtkShortcutLabel to the docs (*)
  e91907d... Docs: Various tweaks (*)
  66e8025... GtkFileChooserWidget: fix refactor regression (*)
  cd077d1... Merge branch 'BUG_regression_select_folder_GTK4' into 'mast (*)
  013cc09... widget: Remove some leftovers (*)
  b4c79ba... Assorted documentation fixes (*)
  2869f80... Merge branch 'docs-work' into 'master' (*)
  b20f21d... gtkpopover: Set GTK grab on autohide popovers (*)
  ecf3130... Merge branch 'wip/carlosg/grabbing-popovers' into 'master' (*)
  eeb41c8... NEWS: More updates
  d756c6e... Move set_focus_child to GtkWidget
  841c4a8... container: Cosmetic doc cleanup
  b55195f... Move the idle sizer to GtkWindow

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