Draft: Display policy sync status in policy overview

What does this MR do and why?

References

Displays the policy sync status in the policy overview page.

Screenshots or screen recordings

TBD

How to set up and validate locally

TBD

MR acceptance checklist

Evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Related to #563384