添加用户名筛选

app/Admin/Controllers/v3/StoreUserController.php

@@ -54,6 +54,7 @@ class StoreUserController extends AdminController
             $grid->filter(function (Grid\Filter $filter) use($categoryList,$storeList){
                 unset($categoryList[0]);
                 $filter->equal('id');
+                $filter->equal('username');
                 $filter->equal('user_category')->select($categoryList);
                 $filter->equal('store_id')->select($storeList);
             });