统一容器树返回itemCount

app/Http/Controllers/API/LibraryController.php

@@ -112,7 +112,7 @@ class LibraryController extends Controller
             // 设置固定的type值
             $libraries->type = 'library';
             $libraries->uniId=$libraries->type.'_'.$libraries->id;
-            $libraries->containerCount=$libraries->container()->count();
+            $libraries->itemCount=$libraries->container()->count();
             });
 
         return $this->success([