Wraps Payload's group field in a Collapsible so long groups (e.g. profile minigames) can start collapsed in the admin panel; refreshes the import map.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
