If the user disconnects OBS from their Mixer account on their Mixer
settings panel, then try asking the user if they'd like to reconnect
before throwing an error.
The message boxes that tell you that the browser is initializing or that
you're authenticating with twitch are annoying on startup. It makes
sense to do it in the settings/autoconfig dialogs where you sort of need
to know what's going on while waiting for it to connect, but on startup
it's not really necessary and can be kind of annoying.
