input: Fix bug in idle inhibition

Server generated key repeats are ignored - and they don't generate
matching release events. We early return to avoid generating events
for them.

We also need to push the idle inhibition counting after that early
return to prevent breaking idle inhibition with unmatched events.

Co-authored-by: Steve Pronovost <spronovo@microsoft.com>
Co-authored-by: Brenton DeGeer <brdegeer@microsoft.com>
Signed-off-by: Hideyuki Nagase <hideyukn@microsoft.com>
Signed-off-by: Steve Pronovost <spronovo@microsoft.com>
Signed-off-by: Brenton DeGeer <brdegeer@microsoft.com>