TF-1014: [Dev] Show quota at the bottom of mailbox

lib/features/quotas/domain/state/get_quotas_state.dart

@@ -0,0 +1,25 @@
+import 'package:core/core.dart';
+import 'package:jmap_dart_client/jmap/core/state.dart';
+import 'package:jmap_dart_client/jmap/quotas/quota.dart';
+
+class GetQuotasSuccess extends UIState {
+  final List<Quota> quotas;
+  final State? state;
+
+  GetQuotasSuccess(this.quotas, this.state);
+
+  @override
+  List<Object?> get props => [
+    quotas,
+    state,
+  ];
+}
+
+class GetQuotasFailure extends FeatureFailure {
+  final dynamic exception;
+
+  GetQuotasFailure(this.exception);
+
+  @override
+  List<Object> get props => [exception];
+}