* Correctly tear down the user session on signing out
* Fix session verification <-> user session retain cycle, visible range debouncer leak
* Manually clean up coordinators retained within SwiftUI's NavigationStacks
* Slightly refactor the timeline content menu builder and prevent it from retaining the view model. Cleanup now unnecessarily optional RoomScreenCoordinator instance vars
* Move coordinator dismissal logic to the navigation modules
* Create media player screen
* Introduce `FileCache` to cache message attachments
* Add file loading functionality into the media provider
* Process tap action on timeline items
* Pass item taps to view model
* Navigate to media player on view model callback
* Commit project file
* Add changelog
* Rename media to video
* Add a loader when large videos being processed
* Add back button explicitly on video screen, fixes for light scheme
* Handle right swipe to dismiss video
* Add `stop` method to `Coordinator`
* Use new stop method to cleanup room screen
* Call stop implicitly when removing a child coordinator
* Revert placeholder avatar font change
* Fix PR remarks
