fix(1-on-1): adjust toolbar hide times, change hover selector
fix(1-on-1): adjust toolbar hide times, change hover selector

- The toolbar display durations have been reduced to compensate
  for a torture test machine that might be a little slow.
- The selector for the mousehover target, for showing remote
  videos, has been changed to one that is guaranteed to be
  available.

jitsi/jitsi-meet-torture,jitsi/jitsi-meet-torture,jitsi/jitsi-meet-torture,jitsi/jitsi-meet-torture,jitsi/jitsi-meet-torture