edit design

lib/notification/notificationService.dart

@@ -64,7 +64,7 @@ class NotificationService {
     );
   }
 
-  void showToast({required String message, required BuildContext context, ToastGravity gravity = ToastGravity.BOTTOM}) {
+  void showToast({required String message, required BuildContext context, ToastGravity gravity = ToastGravity.TOP}) {
     Fluttertoast.showToast(
       msg: message,
       gravity: gravity,