Collaboration room refresh disconnect bug #85
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Overview
Closes #78
Bug was due to race conditions between setting state from the backend server and the live socket connection between editors. Specifically, when a user refreshed, we would get the state from the backend, set that in the editor, then open the connection to the other user's editor.
This would cause an error and close the connection.
This has since been fixed by having frontend state be set only if there is 1 user in the room (i.e. no such conflicts occur).