Fixes flakiness where we enter and exit window states too fast on macOS,
while also removing 2 second waits in the positioning tests that were
slowing things down needlessly.
Change-Id: Ia4ee4d4812474c520fdd3f76b047f4eabe1a8220
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>