This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.
Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
* This exposes the token in the Sidekiq dashboard which can be
viewed by an admin and defeats the purpose of using a token
in the download backup email ink.
- send email to logged in admin when they press the "download" button
- show pop-up that email was sent
- create email template
- require a valid token to download backup