[gtk] (25 commits) Non-fast-forward update to branch ebassi/doc-fixes

[Emmanuele Bassi <ebassi src gnome org>]

The branch 'ebassi/doc-fixes' 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:

  532a8ad... Remove gtk-doc annotation from private symbols
  442283c... docs: Remove private symbols from the API reference
  c17941b... docs: Ignore harder
  beb3df0... docs: Add missing GdkDragSurfaceInterface gtk-doc annotatio
  b10cbce... docs: Remove duplicate symbol
  b176f20... docs: More ignored files
  365e722... docs: Add yet another private header
  3b92892... docs: Add more symbols to the GDK reference

Commits added to the branch:

  6a3bd1c... window: default_icon_name can be null (*)
  b5077d0... Clarify the docs for gtk_widget_class_set_css_name (*)
  af944aa... widget: Add a missing nullability annotation (*)
  50310f7... TreeView: add missing nullability annotations (*)
  845d2e5... TreeModel: add missing nullability annotations (*)
  b47ea94... TextView: add missing nullability annotations (*)
  ec537d7... Text: add missing nullability annotations (*)
  9d52ca1... StringFilter: get_search fix nullable annotation (*)
  ad30ac3... Shortcut: add missing nullability annotations (*)
  475352f... StringList: add missing nullability annotations (*)
  4434889... Merge branch 'matthiasc/for-master' into 'master' (*)
  ca8b00e... macos: specify a window level for surfaces (*)
  9b9fb4d... macos: place above transient-for when presenting (*)
  3da41b6... Merge branch 'wip/chergert/gdk-macos-for-master' into 'mast (*)
  4caceb5... Remove gtk-doc annotation from private symbols
  f5f6cee... docs: Remove private symbols from the API reference
  caae240... docs: Ignore harder
  3548350... docs: Add missing GdkDragSurfaceInterface gtk-doc annotatio
  8f6e384... docs: Remove duplicate symbol
  901d99d... docs: More ignored files
  39dbd91... docs: Add yet another private header
  34197d4... docs: Add more symbols to the GDK reference
  2e146a5... docs: Mark GtkModelButton's section as private
  b2b451d... docs: Hide private files/directories in the GTK reference
  13f9993... docs: Add missing fields to GtkTextBufferClass

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