Move all subjects to first line in locale
Move all subjects to first line in locale

It's a natural location (as it comes before the email body) and
consistency makes it easier to find them.

ministryofjustice/prison-visits-public,ministryofjustice/prison-visits-2,ministryofjustice/prison-visits-2,ministryofjustice/prison-visits-2,ministryofjustice/prison-visits-public,ministryofjustice/prison-visits-public,ministryofjustice/prison-visits-2,ministryofjustice/prison-visits-public