feature: Navigate to a page then remove previous one from stack

Feature Request
I would like to achieve the following behavior:
Once I navigate to a page, I would like to remove the previous page from the stack. Something like

			this
				.HostScreen
				.Router
				.NavigateAndRemovePrevious
				.Execute(targetViewModel)
				.Subscribe()
				.DisposeWith(Subscriptions);

What is the current behavior?

I tried mimicking this behavior by manually removing the previous entry from the Router's NavigationStack but that resulted in an animated back navigation then forward navigation to my target vm.

Start with the Router navigation stack and the existing Navigate and Execute flow shown in the issue. Reproduce navigation to a target view model, then verify that the previous entry is removed without an animated back navigation followed by a forward navigation.