feat(web) add asset count stats on admin page (#843)

mobile/openapi/test/usage_by_user_dto_test.dart

@@ -0,0 +1,42 @@
+//
+// AUTO-GENERATED FILE, DO NOT MODIFY!
+//
+// @dart=2.12
+
+// ignore_for_file: unused_element, unused_import
+// ignore_for_file: always_put_required_named_parameters_first
+// ignore_for_file: constant_identifier_names
+// ignore_for_file: lines_longer_than_80_chars
+
+import 'package:openapi/api.dart';
+import 'package:test/test.dart';
+
+// tests for UsageByUserDto
+void main() {
+  // final instance = UsageByUserDto();
+
+  group('test UsageByUserDto', () {
+    // int usageRaw
+    test('to test the property `usageRaw`', () async {
+      // TODO
+    });
+
+    // num objects
+    test('to test the property `objects`', () async {
+      // TODO
+    });
+
+    // num videos
+    test('to test the property `videos`', () async {
+      // TODO
+    });
+
+    // num images
+    test('to test the property `images`', () async {
+      // TODO
+    });
+
+
+  });
+
+}