feat: customer page

lib/application/customer/customer_loader/customer_loader_event.dart

@@ -0,0 +1,9 @@
+part of 'customer_loader_bloc.dart';
+
+@freezed
+class CustomerLoaderEvent with _$CustomerLoaderEvent {
+  const factory CustomerLoaderEvent.searchChanged(String search) =
+      _SearchChanged;
+  const factory CustomerLoaderEvent.fetched({@Default(false) bool isRefresh}) =
+      _Fetched;
+}