TF-4356 Add filter event mail in search (#4357)

* Add `Events` filter checkbox in Advanced Search form
* Perform search email by `Events` filter in Advanced Search form
* Add `Event` quick search button in Search view
* Use `keywords` replace to `headers` for search event filter

lib/features/search/email/presentation/search_email_view.dart

@@ -11,6 +11,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 import 'package:get/get.dart';
 import 'package:jmap_dart_client/jmap/mail/email/email_address.dart';
+import 'package:jmap_dart_client/jmap/mail/email/keyword_identifier.dart';
 import 'package:jmap_dart_client/jmap/mail/mailbox/mailbox.dart';
 import 'package:labels/model/label.dart';
 import 'package:model/model.dart';
@@ -302,6 +303,8 @@ class SearchEmailView extends GetWidget<SearchEmailController>
                     SearchEmailViewStyle.searchFilterSizeBoxMargin,
                     _buildSearchFilterButton(context, QuickSearchFilter.unread),
                     SearchEmailViewStyle.searchFilterSizeBoxMargin,
+                    _buildSearchFilterButton(context, QuickSearchFilter.events),
+                    SearchEmailViewStyle.searchFilterSizeBoxMargin,
                     _buildSearchFilterButton(context, QuickSearchFilter.sortBy),
                   ],
                 );
@@ -412,11 +415,16 @@ class SearchEmailView extends GetWidget<SearchEmailController>
         controller.selectMailboxForSearchFilter(controller.mailboxFiltered);
         break;
       case QuickSearchFilter.starred:
-        controller.selectStarredSearchFilter();
+        controller.selectKeywordsSearchFilter(KeyWordIdentifier.emailFlagged);
         break;
       case QuickSearchFilter.unread:
         controller.selectUnreadSearchFilter();
         break;
+      case QuickSearchFilter.events:
+        controller.selectKeywordsSearchFilter(
+          KeyWordIdentifierExtension.eventsMail,
+        );
+        break;
       case QuickSearchFilter.labels:
         final listLabels = controller.mailboxDashBoardController.labelController.labels;
         final selectedLabel = controller.labelFiltered;