feat:取消登录默认存在的账号密码

src/views/_builtin/login/modules/pwd-login.vue

@@ -41,8 +41,8 @@ const codeImg = ref('');
 getCheckCode();
 
 const model = reactive<LoginForm>({
-  username: '123456',
-  password: '123456',
+  username: '',
+  password: '',
   code: '',
   uuid: '',
   authType: 'u',