Add partial role support for manager only

- Add the custom role which replaces the manager role
- Added mini-details endpoint used by v2024.11.1

These changes try to add the custom role in such a way that it stays compatible with the older manager role.
It will convert a manager role into a custom role, and if a manager has `access-all` rights, it will enable the correct custom roles.
Upon saving it will convert these back to the old format.

What this does is making sure you are able to revert back to an older version of Vaultwarden without issues.
This way we can support newer web-vault's and still be compatible with a previous Vaultwarden version if needed.

In the future this needs to be changed to full role support though.

Signed-off-by: BlackDex <black.dex@gmail.com>