[gtk] (10 commits) Created branch wip/baedert/filechooser2

[Timm Bäder <baedert src gnome org>]

The branch 'wip/baedert/filechooser2' was created.

Summary of new commits:

  dcc55e3... Adwaita: Bring filechooserbutton spacing back
  7e20232... colorbutton: Remove unneeded snapshot implementation
  0f6d83b... filechooserbutton: Remove some dead code
  2bd3485... filechooserwidget: Remove some GdkEvent usage
  cf2ef48... filechooserwidget: Don't focus treeview when searching
  78049f4... filechooserwidget: Remove unneeded function prototype
  929cdd9... treeview: Don't always grab_focus() when moving the cursor
  ed4c08d... window: Check whether the new focus widget is the old one
  b75bc8a... filechooserwidget: Allow keynav from the treeview to the se
  5a1c37a... filechooserwidget: Use a center box for the search entry