createUser = (credentials, profile) =>
    authActions.createUser(dispatch, firebase, credentials, profile)
Creates a new user in Firebase authentication. If
`userProfile` config option is set, user profiles will be set to this
location.
@param {object} credentials - Credentials for authenticating
@param {string} credentials.email - Credentials for authenticating
@param {string} credentials.password - Credentials for authenticating (only used with email)
@param {object} profile - Data to include within new user profile
@returns {Promise} Containing user's auth data
@see https://react-redux-firebase.com/docs/auth.html#createuser