* Add a common view snapshot type
This will contain the common snapshot values used by both dm ongoing
call tile view and room ongoing call tile view.
* Implement the common join button component
* Implement the call icon component
* Implement the common container component
* Support single digit minutes in existing clock component
* Implement the view for duration component
* Add static profile pics to be used in storybook tests
* Implement view for member avatar component
* Implement view for face pile component
* Implement RoomOngoingCallTileView
* Implement DmOngoingCallTileView
* Support the new tiles in RootTileView
* Export all the views
* Update all the screenshots
* Add a comment about the 10px margin
* Add comments to explain css heights and widths