I've added a custom InfoDrawer composable inspired by the provided ModalDrawer one, that opens from the right and has the Material design defined scrim effect (which is a bit different from our previous style). This InfoDrawer is used at a very high level of the UI tree (in MainScreen) and is interacted with (including setting the Composable content) using an InfoDrawerHandler that is available thanks to CompositionLocalProvider. This might be a viable approach for AlertDialogs as well (see #237).
I've also migrated the IntroductionDrawer to the new scheme.
