step 9 : listing history scan dan pull to refresh, perbaikan auth model add host

lib/app/app_extension.dart

@@ -0,0 +1,5 @@
+import 'package:jiffy/jiffy.dart';
+
+String formatDateJiffy(String serverDate) {
+  return Jiffy.parse(serverDate).format(pattern: 'dd-MM-yyyy');
+}