Give users with View and Edit permissions ability to view Raw Emails on MuckRock Requests

[mitchelljkotler]

Users that have been explicitly given permissions (such as view or edit permissions) should have the ability to see the "Raw" emails. We originally severely limited this for concerns around confusing users that haven't generally borne out.

As long as we're making this change, would grant these view permissions for both view and editor permissions, but fine if we limit this to just users with edit permissions. Would also be covered (ideally) in circumstances where people inherit view permissions from their org membership.

(Filed by @morisy )

[mitchelljkotler]

I will limit this to those with Edit access. Otherwise anybody could view the raw emails for public requests.