Always handle web socket open when connecting

[WilliamBergamin]

Summary

This should resolve #1521
An edge case seem to be present when the finite state machine (fns) is not in the authenticated state and the listeners are initialized. This can happen when the application was connected (initialized), lost connection and is reconnecting.

If for some reason the web socket open event is triggered before authentication is successful the fns falls-back to handling this event at the connecting state level instead of the submachine. This causes an fns error which terminates the running process.

This pr changes the behavior of the fns to ignore web socket open events when it is in the connecting state and the submachine is not authenticated, this should prevent the process from terminating.

Requirements (place an x in each [ ])

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[WilliamBergamin]

I've tested these changes locally by allowing certain variables to be public but not sure how we could add unit tests without refactoring part of the package

[seratch]

Thanks for fixing. This should be fine. As you mentioned, writing tests for this module is still hard. It's okay to skip adding tests this time.

[filmaj]

LGTM! Left a tiny comment to comment the change to help us in the future 😄