Add logs for pressHome for isLauncherVisible

- Log isLauncherVisble right before the swipe gesture to see if it's a more accurate indicator compared to reading isLauncherVisble earlier

Bug: 193653850
Test: StartLauncherViaGestureTests#testStressPressHome
Change-Id: I4a8303a82f1106c0d1345f561ab469aa4ed59e51