Collapse state messages on room creation

Related to https://github.com/vector-im/element-ios/issues/3629

But on Element Android, we already support collapsed events for room creation events, in the same manner than membership change events, i.e. with inlined expand and collpase actions

Current state:
- Internal discussion to display them out of the timeline, in a BottomSheet, which will break the current way we manage and display timeline events. Design team wants it, developer team does not want it.
- Another proposal would be to display the information about who has created the room and when in the room settings.