Once the FEO spec is ready with the new format, the reconciliation should be updated to collect them and write a new variable to the frontend config map.

Details: https://docs.google.com/document/d/1RQhEdiKp2nkgZBpxUCrZAh8CvwbEMOhJNGx9ZLjKMK4/edit?tab=t.0#heading=h.3hvqbb3j0bs4

Ensure the list is deterministically sorted! If note we may end up in an infinite reconciliation loop.