Allow linking room/space settings

[lunar-seal]

Describe the problem

Room/Space settings currently cant be linked. This would be great to help other people get the hang of matrix/sable and show them where settings are.

Describe the solution you'd like

Allow linking settings of a specific room just like with account settings

Alternatives considered

No response

Additional context

No response

[Wolf-Seisenbacher]

On top of this, may be nice to include the ability to link rooms/spaces with member power levels for easier managing member lists and their powers within a space. Should just be a toggle which we select which rooms to link together. Maybe a master/slave setup. I have some rooms in my homeserver that are shared between multiple spaces, so I think that'd work the best. It currently is annoying to try to go through each room and set power levels in each x3