fix: Huge cleanup (#420)

Co-authored-by: Dennis Ploeger <develop@dieploegers.de>

addons/escoria-ui-simplemouse/game.gd

@@ -37,6 +37,17 @@ func _enter_tree():
 		self, 
 		"_on_action_finished"
 	)
+	
+	var room_selector_parent = $CanvasLayer/ui/HBoxContainer/VBoxContainer
+	
+	if ProjectSettings.get_setting("escoria/debug/enable_room_selector") and \
+			room_selector_parent.get_node_or_null("room_select") == null:
+		room_selector_parent.add_child(
+			preload(
+				"res://addons/escoria-core/ui_library/tools/room_select" +\
+				"/room_select.tscn"
+			).instance()
+		)
 
 func _exit_tree():
 	escoria.action_manager.disconnect(