fixed fullscreen on display app

showcaseScreen/handlers/comHandler.py

@@ -51,7 +51,7 @@ class Com:
         except Exception:
             return False
         if self.x.text == "True":
-            return True
+            return 'auto'
         else:
             return False
 

showcaseScreen/musicplayer_showcase_screen.py

@@ -91,5 +91,4 @@ class MusicPlayerShowcaseScreen(MDApp):
         screen_manager.add_widget(Builder.load_file('./ui/showcase.kv'))
         return screen_manager
 
-
 MusicPlayerShowcaseScreen().run()