Usercenter optimize

[fyannch]

Expected Behavior
In the user profile, the user can perform some actions such as canceling the offer made and dealing with the offer , user can edit banner and avatar.

Specifications
As a user, I want to see all my activities and perform some actions in the profile.So, this new feature solves this problem.

Features:

user can perform some actions such as batch or single canceling the offer made and dealing with the offer.
user can save avatar and banner.
Dependencies
nil