TF-3515 Add save email as template feature

lib/features/composer/domain/extensions/set_method_exception_description_extension.dart

@@ -0,0 +1,11 @@
+import 'package:collection/collection.dart';
+import 'package:jmap_dart_client/jmap/core/error/error_type.dart';
+import 'package:tmail_ui_user/features/composer/domain/exceptions/set_method_exception.dart';
+
+extension SetMethodExceptionDescriptionExtension on SetMethodException {
+  String? getDescriptionFromErrorType(ErrorType errorType) {
+    return mapErrors.values
+        .firstWhereOrNull((setError) => setError.type == errorType)
+        ?.description;
+  }
+}

lib/features/composer/domain/repository/composer_repository.dart

@@ -10,6 +10,7 @@ abstract class ComposerRepository {
     {
       bool withIdentityHeader = false,
       bool isDraft = false,
+      bool isTemplate = false,
     });
 
   Future<UploadAttachment> uploadAttachment(FileInfo fileInfo, Uri uploadUri, {CancelToken? cancelToken});

lib/features/composer/domain/usecases/save_composer_cache_on_web_interactor.dart

@@ -42,6 +42,7 @@ class SaveComposerCacheOnWebInteractor {
           draftHash: createEmailRequest.savedDraftHash,
           actionType: createEmailRequest.savedActionType,
           draftEmailId: createEmailRequest.draftsEmailId,
+          templateEmailId: createEmailRequest.templateEmailId,
         ));
       return Right(SaveComposerCacheSuccess());
     } catch (exception) {