frontend: add back fixture file for AFE app

Because its removal brought regressions on unittests
that used the database and we're slowly moving towards
having the full database generated from Django.

Note: there's no need to update the migrate version
because the current version script is already safe
if the 'Everyone' ACL entry exists or not.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>