Fill Site Link Bridge property pages with correct informations

### Fill Site Link Bridge property pages with correct informations

Fill with correct informations panels _Sites link in this site link bridge_ and _Sites link not in this site link bridge_
Logic of buttons _Add >>_ and _<< Remove_ are already coded

<img width="598" height="509" alt="Image" src="https://github.com/user-attachments/assets/f7c96399-61eb-4271-90b6-520c9660af07" />