ActionMailer should be backgrounded?

[whereismyjetpack]

Right now, when reporting an issue, we send the email in the thread of the request, we should send this to sidekiq, and raise after so many failed attempts, this way messages won't get lost if smtp is down, misconfigured, etc.

• Configure sidekiq
• have our issue report mail .delilver_later instead of deliver_now
• add queue monitoring so we see deadset queues