* super WIP POC for merging virtual room events into main timeline
* remove some debugs
* c
* add some todos
* remove hardcoded fake virtual user
* insert overlay events into main timeline without resorting main tl events
* remove more debugs
* add extra tick to roomview tests
* RoomView test case for virtual room
* test case for merged timeline
* make overlay event filter generic
* remove TODOs from LegacyCallEventGrouper
* tidy comments
* remove some newlines
* test timelinepanel room timeline event handling
* use newState.roomId
* fix strict errors in RoomView
* fix strict errors in TimelinePanel
* add type
* pr tweaks
* strict errors
* more strict fix
* strict error whackamole
* update ROomView tests to use rtl