feat: NG-15: 新会员注册时增加国家与语言选项.

backendApi/modules/v1/controllers/BaseController.php

@@ -42,7 +42,7 @@ class BaseController extends \yii\rest\ActiveController {
         if (!Yii::$app->request->isOptions) {
             $language = Yii::$app->request->headers->get('language') ?? 'en';
             Yii::$app->language = Tool::langConvert($language);
-//            Yii::$app->sourceLanguage = 'en-US';
+            Yii::$app->sourceLanguage = 'en-US';
         }
 
         // 增加的判断用户登录后未操作后的超时