Fix missing column renderer

Author: BurntimeX

wcfsetup/install/files/lib/system/gridView/admin/BoxGridView.class.php

@@ -10,6 +10,7 @@
 use wcf\system\gridView\AbstractGridView;
 use wcf\system\gridView\GridViewColumn;
 use wcf\system\gridView\GridViewRowLink;
+use wcf\system\gridView\renderer\NumberColumnRenderer;
 use wcf\system\gridView\renderer\ObjectIdColumnRenderer;
 use wcf\system\interaction\admin\BoxInteractions;
 use wcf\system\interaction\Divider;
@@ -79,6 +80,7 @@ public function __construct()
                 ->sortable(),
             GridViewColumn::for('showOrder')
                 ->label('wcf.global.showOrder')
+                ->renderer(new NumberColumnRenderer())
                 ->filter(IntegerFilter::class)
                 ->sortable(),
         ]);