first commit

lib/screens/collections/cubit/collection_state.dart

@@ -0,0 +1,9 @@
+part of 'collection_cubit.dart';
+
+@freezed
+class CollectionState with _$CollectionState {
+  const factory CollectionState.loading() = _Loading;
+  const factory CollectionState.data() = _Data;
+  const factory CollectionState.empty() = _Empty;
+  const factory CollectionState.error() = _Error;
+}