completely save config with toml format

assets/lang/en.json

@@ -29,6 +29,7 @@
   "Other error": "Other error",
   "Param error": "Param error",
   "User exist": "User exist",
+  "User not exist": "User not exist",
   "User format error": "User cannot be empty or include space char. It only allowed alphanumeric and underline.",
   "Token format error": "Token cannot be empty or include space char. It allow include those special char: _!@#$%^&*()",
   "Please check at least one user": "Please Check at least one user",

assets/lang/zh.json

@@ -29,6 +29,7 @@
   "Other error": "其他异常",
   "Param error": "参数异常",
   "User exist": "用户已经存在",
+  "User not exist": "用户不存在",
   "User format error": "用户不能为空或包含空格。只允许英文数字、字母、下划线",
   "Token format error": "Token不能为空或包含空格。允许的特殊符号：_!@#$%^&*()",
   "Please check at least one user": "请选中需要操作的用户",