loadable error screen, reload actions, autoreload

lib/state/app/infrastructure/loadableState/loading_error.dart

@@ -0,0 +1,12 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'loading_error.freezed.dart';
+
+@freezed
+class LoadingError with _$LoadingError {
+  const factory LoadingError({
+    required String message,
+    @Default(false) bool enableRetry,
+    @Default(null) void Function()? retry,
+  }) = _LoadingError;
+}