TF-3911 Support mail keyboard shortcut actions in email detailed view on web

lib/features/thread_detail/presentation/model/mail_view_shortcut_action_view_event.dart

@@ -0,0 +1,13 @@
+import 'package:core/presentation/state/success.dart';
+import 'package:model/email/email_action_type.dart';
+import 'package:model/email/presentation_email.dart';
+
+class MailViewShortcutActionViewEvent extends ViewEvent {
+  final EmailActionType actionType;
+  final PresentationEmail presentationEmail;
+
+  MailViewShortcutActionViewEvent(this.actionType, this.presentationEmail);
+
+  @override
+  List<Object?> get props => [actionType, presentationEmail];
+}