Adding isNotInRecents to RemoteAnimationTarget

For animations required by Recents, we calculate whether the task is
going to be presented in Recents UI.

Bug: 70789568
Test: Manual: swipe a normal app to Recents; swipe an app with a
      half-screen assistant on top of it to Recents.

Change-Id: I1ec9c36865dd4f57e843ae58811f90f3096365a5