code refactor

src/locales/en.json

@@ -967,6 +967,8 @@
         "no user avatar": "There is no user avatar file",
         "user avatar is empty": "User avatar file is empty",
         "user avatar not exists": "User avatar does not exist",
+        "user avatar not set": "User avatar is not set",
+        "user avatar file extension invalid": "User avatar file extension is invalid",
         "unauthorized access": "Unauthorized access",
         "current token is invalid": "Current token is invalid",
         "current token is expired": "Current token is expired",

src/locales/zh_Hans.json

@@ -967,6 +967,8 @@
         "no user avatar": "没有用户头像文件",
         "user avatar is empty": "用户头像文件为空",
         "user avatar not exists": "用户头像不存在",
+        "user avatar not set": "用户没有设置头像",
+        "user avatar file extension invalid": "用户头像文件扩展名无效",
         "unauthorized access": "未授权的登录",
         "current token is invalid": "当前认证令牌无效",
         "current token is expired": "当前认证令牌已过期",