notificaciones al pedir servicio y al enviar mensaje de chat

lib/blocs/notification_bloc/notification_event.dart

@@ -0,0 +1,14 @@
+part of 'notification_bloc.dart';
+
+abstract class NotificationEvent extends Equatable {
+  const NotificationEvent();
+
+  @override
+  List<Object> get props => [];
+}
+
+class NotificationStatusChanged extends NotificationEvent {
+  final AuthorizationStatus status;
+
+  const NotificationStatusChanged(this.status);
+}