Currently, the import buttons in the "session home" are [hardcoded](https://github.com/WordPress/try-wordpress/blob/trunk/src/ui/session/ViewSession.tsx#L17-L44): <img width="304" alt="Image" src="https://github.com/user-attachments/assets/d3c42354-3646-4968-a396-bc57d839e08d" /> Instead, which import buttons to display should be automatically calculated from the schema.
