fix layout designer

src/app_events.cpp

@@ -67,6 +67,8 @@ void App::crash_test()
 
 void App::tick(float dt)
 {
+    if (auto* main = layout_designer[main_id])
+        main->tick(dt);
     if (auto* main = layout[main_id])
         main->tick(dt);
 }