TF-2681 Create get always read receipt setting interactor

lib/features/server_settings/domain/state/get_always_read_receipt_setting_state.dart

@@ -0,0 +1,18 @@
+import 'package:core/presentation/state/failure.dart';
+import 'package:core/presentation/state/success.dart';
+
+class GettingAlwaysReadReceiptSetting extends LoadingState {}
+
+class GetAlwaysReadReceiptSettingSuccess extends UIState {
+  final bool alwaysReadReceiptEnabled;
+
+  GetAlwaysReadReceiptSettingSuccess({required this.alwaysReadReceiptEnabled});
+
+  @override
+  List<Object?> get props => [alwaysReadReceiptEnabled];
+}
+
+class GetAlwaysReadReceiptSettingFailure extends FeatureFailure {
+  GetAlwaysReadReceiptSettingFailure(dynamic exception) 
+    : super(exception: exception);
+}

lib/features/server_settings/domain/usecases/get_always_read_receipt_setting_interactor.dart

@@ -0,0 +1,23 @@
+import 'package:core/presentation/state/failure.dart';
+import 'package:core/presentation/state/success.dart';
+import 'package:dartz/dartz.dart';
+import 'package:jmap_dart_client/jmap/account_id.dart';
+import 'package:tmail_ui_user/features/server_settings/domain/repository/server_settings_repository.dart';
+import 'package:tmail_ui_user/features/server_settings/domain/state/get_always_read_receipt_setting_state.dart';
+
+class GetAlwaysReadReceiptSettingInteractor {
+  final ServerSettingsRepository _serverSettingsRepository;
+
+  GetAlwaysReadReceiptSettingInteractor(this._serverSettingsRepository);
+
+  Stream<Either<Failure, Success>> execute(AccountId accountId) async* {
+    try {
+      yield Right(GettingAlwaysReadReceiptSetting());
+      final result = await _serverSettingsRepository.getServerSettings(accountId);
+      yield Right(GetAlwaysReadReceiptSettingSuccess(
+        alwaysReadReceiptEnabled: result.settings?.alwaysReadReceipts ?? true));
+    } catch (e) {
+      yield Left(GetAlwaysReadReceiptSettingFailure(e));
+    }
+  }
+}