auto update translation

GitOrigin-RevId: eb89cf81de994aff77bd8a88748656700dbad86c

services/web/locales/zh-CN.json

@@ -434,6 +434,7 @@
   "dont_have_account": "还没有账户？",
   "dont_have_account_without_question_mark": "没有帐号",
   "download": "下载",
+  "download_all": "下载全部",
   "download_metadata": "下载 Overleaf 元数据",
   "download_pdf": "下载PDF",
   "download_zip_file": "下载 ZIP 格式文件",