Cancel previous association attempt when receiving new one in fakewallet

[steveluscher]

One thing that’s been frustrating in testing is that, if a dApp fires off the association URL to open fakewallet, but then for whatever reason fails to connect to the websocket it opens, then fires off a second association URL with a different port, then fakewallet reopens to the screen with a spinner – still trying to respond to that first session request.

Is it a simple change to make fakewallet abandon the last and start the next session establishment, whenever receiving the session establishment intent?