Loading
FreeformHandler should just intercept, not claim animations
There are already animations for most of these operations (eg. in launcher), so instead of "claiming" the transition animation and doing nothing, this should just update state (window decor) and then let other handlers play the animations. Bug: 241486751 Test: launch app from launcher, go back. Change-Id: Ic5d01b76c04d6adab484d53d24d1a89b001a4c80