add buttons.statistic

dashboard/src/locales/zh-Hans/buttons.ts

@@ -75,6 +75,7 @@ const items = {
   "buttons.refuse": "拒绝",
   "buttons.use.as.guest": "以访客身份继续使用",
   "buttons.got.it": "知道了",
+  "buttons.statistic": "统计",
 };
 
 export default items;