[gnome-mahjongg] Redraw when changing game layout.

[Arnaud B. <arnaudb src gnome org>]

commit 2e43f5805aecf28344ebf1cbda267bd9c28d42ef
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Mon Sep 21 15:35:20 2020 +0200

    Redraw when changing game layout.
    
    Regression from 63a0c0fb10.

 src/game-view.vala | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/game-view.vala b/src/game-view.vala
index c95b8d5..0db3ad8 100644
--- a/src/game-view.vala
+++ b/src/game-view.vala
@@ -43,6 +43,7 @@ public class GameView : Gtk.DrawingArea
             _game = value;
             _game.redraw_tile.connect (redraw_tile_cb);
             _game.paused_changed.connect (paused_changed_cb);
+            update_dimensions ();
             queue_draw ();
         }
     }