Meta: event relationships
This part is not currently in the Spec. It is described in https://github.com/matrix-org/matrix-doc/blob/main/proposals/2674-event-relationships.md
Basically, we need to
- Render a replied-to event, and have some way to navigate to that event.
- Allow a user to reply to some event.
- Display an edited event in the original position in the room timeline, and allow users to view different versions of that message.
- Handle redactions (removal): show or do not show the redacted event, based on user preference.
- Handle reactions
- Show reactions under the event being reacted
- Allow users to react to an event