Try to handle side-task launches even if not fully transitioned to overview

- The launcher state does not transition from Background -> Overview
  until the overview animation finishes, and if a side task is launched
  before that happens, then we receive onTaskAppeared() but
  isInLiveTileMode() is false, which results in a state where no
  animation of the side task surface is run, and the recents animation
  is not finished.  In these cases, if we've already calculated the
  end target is RECENTS, then we can still animate the side task
- Adding some more gesture logs to indicate side task launched (or didn't)

Bug: 279114961
Test: Go to overview and launch next task

Change-Id: I23eac8721da801f14cc95fc6781a0ef9f0355cc0