feature: 处理搜索配网退出界面停止搜索

pages/pageB/deviceConnect2/deviceConnect2.js

@@ -243,6 +243,8 @@ Page({
 
   onUnload: function () {
     var that = this;
+    // 停止搜索
+    that.stopSearch();
     xBlufi.listenDeviceMsgEvent(false, that.funListenDeviceMsgEvent);
   },
 })