[gnome-klotski] (14 commits) Non-fast-forward update to branch arnaudb/wip/gtk4

[Arnaud B. <arnaudb src gnome org>]

The branch 'arnaudb/wip/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:

  b952af2... Compile with Gtk4.
  7971db1... Replace GdkScreen by GdkDisplay.
  ae00a4a... Update to GestureClick.
  3d1e7c6... Make on_window_state_event work.
  e2294f5... Fix type.
  4c5775e... No need to set events.
  8f90abb... Adapt to DrawingArea API.
  e742a91... Adapt size_allocate.
  7cd836b... Fix color init.
  39c0434... Update UI file.
  c2ec784... Fix popover placement.
  2b388f6... Fix popover look.
  9ada137... Avoid a bug.

Commits added to the branch:

  7f53b01... Update German translation (*)
  954d215... Compile with Gtk4.
  7cf4e29... Replace GdkScreen by GdkDisplay.
  fdb23c2... Update to GestureClick.
  94c0716... Make on_window_state_event work.
  be07121... Fix type.
  db4e58d... No need to set events.
  9dbb784... Adapt to DrawingArea API.
  ce83285... Adapt size_allocate.
  246e44e... Fix color init.
  eabb877... Update UI file.
  0dfea64... Fix popover placement.
  68490c2... Fix popover look.
  c21e23b... Avoid a bug.

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