Currently we are creating ServiceScopes that have a life time attached to the platform windowbut we never actually dispose of the scopes.

This would be very useful behavior to have for services that are created with a service scoped life time.

Implementation of this might surface some problematic scenarios for users if they are using Service Locator pattern with long lived types. For example, a lot of users are still using App.MainPage = new MainPage(). In this scenario (and others) the xplat window/mainpage will survive the life of the platform window. This means if the user has stored the IServiceProvider locally that IServiceProvider will no longer be valid.