Upgraded dependencies and SDK

lib/notification/notificationService.dart

@@ -1,6 +1,4 @@
-import 'package:flutter/material.dart';
 import 'package:flutter_local_notifications/flutter_local_notifications.dart';
-import 'package:fluttertoast/fluttertoast.dart';
 
 class NotificationService {
   static final NotificationService _instance = NotificationService._internal();
@@ -59,15 +57,4 @@ class NotificationService {
       platformChannelSpecifics,
     );
   }
-
-  void showToast({required String message, required BuildContext context, ToastGravity gravity = ToastGravity.TOP}) {
-    Fluttertoast.showToast(
-      msg: message,
-      gravity: gravity,
-      toastLength: Toast.LENGTH_SHORT,
-      backgroundColor: Theme.of(context).primaryColor,
-      textColor: Colors.white,
-      fontSize: 13.0,
-    );
-  }
 }