Revert "fix: macOS Media Control not activated & remove Background Play switch on desktop (#1872)"

This reverts commit 8f00ca5680.

lib/main.dart

@@ -123,8 +123,6 @@ void main() async {
         ),
       );
     }
-  } else if (Platform.isMacOS) {
-    await setupServiceLocator();
   }
 
   Request();