Widget to display chat between attendees.
** apiBaseUrl = base url for API
** streamApiKey = getstream.io API key
** forumSlug = getstream.io forum slug
accessToken = user access token
onAuthError(err, res) = method called upon api 401 or 403 error
openDir = direction to where the chat opens, right or left, default left
title = widget title
showHelp = shows Help channel, default false
showQA = shows QA channel, default false
hideUsers = hides the User list, default false