accounts: localized site name for user email
accounts: localized site name for user email

* BETTER Uses the localized site name when sending email to users.
  (addresses #3273)

Reviewed-by: Jiri Kuncar <2bdffcb416fed3002465740d19a053a39918cbe5@cern.ch>

tiborsimko/invenio,inveniosoftware/invenio,tiborsimko/invenio,inveniosoftware/invenio