add placeholder for old_password

src/utils/i18n/zh_CN.json

@@ -439,5 +439,18 @@
   "Check your IdP docs, without":
   {
     "One": "检查IdP的文档, 不包含"
+  },
+  "For OIDC login without a password, enter any 4-20 letters":
+  {
+    "One": "如果通过 OIDC 登录且未设置密码，请输入任意 4-20 个字符"
+  },
+  "Old PassWD": {
+    "One": "旧密码"
+  },
+  "New PassWD": {
+    "One": "新密码"
+  },
+  "ConformPassWD": {
+    "One": "确认密码"
   }
 }