Summary: During startup the socket connection would close a few times, among others because Scribe dumps 1.3 MB of data after startup, and the maximum payload of `socket.io` defaults to 1MB. This diff changes it to 100MB (the max size used by `ws` library). We know that we need at least > 10 MB, as that is what plugins like Network cap at.
Reviewed By: aigoncharov
Differential Revision: D33017653
fbshipit-source-id: 1233af6fbdc4b9eed42786ee418cfd6d43b2b433