TF-2628 [Part-2] Add checkingIfAttachmentActionIsEnabled email util

lib/features/email/presentation/utils/email_utils.dart

@@ -1,10 +1,13 @@
 
 import 'package:collection/collection.dart';
-import 'package:core/utils/app_logger.dart';
+import 'package:core/core.dart';
+import 'package:dartz/dartz.dart';
 import 'package:jmap_dart_client/jmap/account_id.dart';
 import 'package:jmap_dart_client/jmap/core/capability/capability_identifier.dart';
 import 'package:jmap_dart_client/jmap/core/properties/properties.dart';
 import 'package:jmap_dart_client/jmap/core/session/session.dart';
+import 'package:tmail_ui_user/features/email/domain/state/download_attachment_for_web_state.dart';
+import 'package:tmail_ui_user/features/email/domain/state/view_attachment_for_web_state.dart';
 import 'package:tmail_ui_user/features/email/presentation/model/email_unsubscribe.dart';
 import 'package:tmail_ui_user/features/thread/domain/constants/thread_constants.dart';
 import 'package:tmail_ui_user/main/error/capability_validator.dart';
@@ -49,4 +52,18 @@ class EmailUtils {
       return null;
     }
   }
+
+  static bool checkingIfAttachmentActionIsEnabled(Either<Failure, Success>? state) {
+    return state?.fold(
+      (failure) {
+        return failure is DownloadAttachmentForWebFailure
+          || failure is ViewAttachmentForWebFailure;
+      }, 
+      (success) {
+        return success is DownloadAttachmentForWebSuccess
+          || success is ViewAttachmentForWebSuccess
+          || success is IdleDownloadAttachmentForWeb
+          || success is IdleViewAttachmentForWeb;
+      }) ?? false;
+  }
 }