fix: handle login func catch cb

pages/index/index.js

@@ -68,6 +68,11 @@ Page({
       that.setStorage(res.data)
     }).catch(e => {
       wx.hideLoading()
+      wx.showModal({
+        content: e,
+        confirmColor: '#333',
+        showCancel: false
+      })
     })
   },
   handleUserLoginRes () {