[gtk] (23 commits) ...gtktreeviewcolumn: Implement column dragging through GtkGestureDrag

[Carlos Garnacho <carlosg src gnome org>]

Summary of changes:

  5f0ed08... gtkbutton: Use key controller for button (de)activation thr (*)
  7048362... gtkbutton: remove keyboard device GTK+ grab (*)
  e08e15b... gtkentry: Use gestures for entry icons (*)
  aaf1e49... gtkfilechooserentry: Use GtkEntry key controller for focus- (*)
  4186a85... gtkfilechooserwidget: Drop usage of ::event vmethod (*)
  3eb1b22... gtkfontchooser: Use GtkEventControllerKey (*)
  c5586f8... gtkspinbutton: Use GtkEventControllerKey (*)
  aa09b07... gtkwindow: Handle focus in/out through key controller (*)
  1d97b5f... gtkpopover: Port to GtkEventController/GtkGesture (*)
  a5414bc... gtkpopover: Fix key navigation (*)
  7bfc3a5... gtkmenushell: Port to GtkGesture (*)
  3d5dc16... gtkwindow: Simplify WM drag/resize handling (*)
  ca08cf9... gtkwindow: Move map/delete/configure event management to gt (*)
  f92ec7c... gtkplacessidebar: Replace ::event signal handlers with gest (*)
  5f8fea0... gtkentrycompletion: Perform event handling on popup through (*)
  2c0d2d3... gtkentrycompletion: Move focus out handling to key controll (*)
  419ee6a... gtkentrycompletion: Properly remove controller from entry (*)
  176fd2f... gtkemojicompletion: Use GtkEntry key controller to handle k (*)
  7fa3183... gtkfilechoooserentry: Handle tab completion through key con (*)
  686116b... gtkfilechooserwidget: Forward events to filechooser through (*)
  ffd89d2... gtkwindow: Queue popover resize on set_popover_position() (*)
  b3e91b7... gtktexthandle: Update to gtk4 rendering/input (*)
  9df5171... gtktreeviewcolumn: Implement column dragging through GtkGes (*)

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