Tweak some logging to make things more readable

- Skip printing the Transition Change's WindowContainerToken on the
  non-server side since it doesn't show any useful info
- Skip printing "ComponentInfo{pkg/class}" and just print
  "pkg/class" directly instead in the grouped task info
- Adding some split logs for when we skip updating the split pair
  mapping, and also when we get the split bounds for the recents
  transition

Bug: 378565144
Flag: EXEMPT logging updates
Test: Check logcat
Change-Id: I8138830f7211c5130b000bcaf31f12ad84deffc7
Signed-off-by: Winson Chung <winsonc@google.com>