fix(pointing): Temp layer threading protection.
Ensure all layer operations occur on the system work queue thread.
Fixes: #2719
fix(pointing): Handle layer events to disable events
Make the temp layer input processor propely handle layers getting
deactivated externally before the temp layer timeout.
Co-authored-by: Nicolas Munnich <98408764+Nick-Munnich@users.noreply.github.com>
Pete Johanson