Export user data

Allow a user to request their data to be exported in a machines readable format (e.g JSON)
Suggestion would be to have some kind of async process, where a user can press a button and begin collecting the data. When it's done, provide a download link that requires an authenticated identity to access. The download should expire, and be overwritten by a new request.

GraphQL SPQR on DAOs

Include:

• Username

• Email address

• API key❓

• Projects, versions (id, name)

• Global and project language teams

Project export (not part of this Jira):

• Documents

• Translations

• Review comments