fix(活动-邀请用户赚星币): 修复背景图白边

pages/activity/invite-user/index.vue

@@ -212,7 +212,7 @@ export default {
   color: #333;
   background-image: url('~/assets/image/activity/invite-user/bg@2x.png');
   background-size: 100% auto;
-  background-position-y: -44px;
+  // background-position-y: -44px;
   overflow: hidden;
   padding-bottom: 30px;
 }