update: optimize data update in the user profile page

Author: Lsnsh

src/pages/user/user.js

@@ -134,7 +134,9 @@ Page({
  }
  oResult.aTopicList = aData.map(oItem => {
  return {
- ...oItem,
+ id: oItem.id,
+ title: oItem.title,
+ author: oItem.author,
  last_reply_at: wx.moment(oItem.last_reply_at).fromNow()
  };
  });