TF-340 Debouncing when open the mailbox to prevent too much pressure on Back-end request

lib/features/mailbox/presentation/model/open_mailbox_view_event.dart

@@ -0,0 +1,13 @@
+import 'package:core/presentation/state/success.dart';
+import 'package:flutter/widgets.dart';
+import 'package:model/mailbox/presentation_mailbox.dart';
+
+class OpenMailboxViewEvent extends ViewEvent {
+  final BuildContext buildContext;
+  final PresentationMailbox presentationMailbox;
+
+  OpenMailboxViewEvent(this.buildContext, this.presentationMailbox);
+
+  @override
+  List<Object?> get props => [buildContext, presentationMailbox];
+}