[libgd] (6 commits) Non-fast-forward update to branch wip/ernestask/gtk4

[Ernestas Kulik <ernestask src gnome org>]

The branch 'wip/ernestask/gtk4' 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:

  a9e3ee4... Add test for GdMainView
  f7412d3... toggle-pixbuf-renderer: hardcode icon size
  dcde22a... toggle-pixbuf-renderer: use gtk_render_activity()
  342da05... main-icon-view: remove style property
  9e12a57... toggle-pixbuf-renderer: use snapshot API for rendering
  bb914f0... main-list-view: use snapshot API for rendering

Commits added to the branch:

  c94d37d... Add test for GdMainView
  555aa1d... toggle-pixbuf-renderer: hardcode icon size
  00faaff... toggle-pixbuf-renderer: use gtk_render_activity()
  ad7b1c8... main-icon-view: remove style property
  acb54a1... toggle-pixbuf-renderer: use snapshot API for rendering
  012c3f1... main-list-view: use snapshot API for rendering