chore(notifications): fix conflig when show notification in android

lib/product/services/alarm_services.dart

@@ -1,6 +1,7 @@
 import 'dart:io';
 import 'package:alarm/alarm.dart';
 
+@pragma('vm:entry-point')
 class AlarmServices {
   Future<void> showAlarm(String title, String body) async {
     final DateTime now = DateTime.now();