ref(slack): Size the setup dialog appropriately
ref(slack): Size the setup dialog appropriately

Fits the entire slack auth prompt
beeftornado/sentry,mvaled/sentry,ifduyue/sentry,mvaled/sentry,mvaled/sentry,looker/sentry,ifduyue/sentry,looker/sentry,ifduyue/sentry,mvaled/sentry,beeftornado/sentry,mvaled/sentry,ifduyue/sentry,looker/sentry,mvaled/sentry,looker/sentry,looker/sentry,ifduyue/sentry,beeftornado/sentry