Rui

现在AES加密的开销并不大，希望WallProxy能够添加客户端与服务器端的AES加密。其实我想自己加的，就是客户端的proxy.py太长，找半天没找到最后的http request和response 处理数据在哪里……

### Describe the bug If the NavigationView control is bound to a collection of NavigationViewItem, when one of the item in the collection is about to be removed, the OnMenuItemsSource_CollectionChanged...