Geo Primary Verification: Rollout feature flag

Summary

This issue is to roll out the Geo Primary Verification feature on production, which is currently coded behind the geo_primary_verification_view feature flag.

Owners

• Most appropriate Slack channel to reach out to: #f_geo_observability
• Best individual to reach out to: @c_fons and @zcuddy

Expectations

What are we expecting to happen?

It becomes possible to access admin/data_management/:model_name/:id to see more details about a specific Model in GitLab.

What can go wrong and how would we detect it?

Bad UX or UI if users stumble upon this before it is ready.