Correctly compute width and height for screens after the first.
Correctly compute width and height for screens after the first.

kiniou/qtile,w1ndy/qtile,StephenBarnes/qtile,tych0/qtile,cortesi/qtile,de-vri-es/qtile,apinsard/qtile,tych0/qtile,farebord/qtile,de-vri-es/qtile,xplv/qtile,rxcomm/qtile,soulchainer/qtile,dequis/qtile,zordsdavini/qtile,ramnes/qtile,nxnfufunezn/qtile,qtile/qtile,EndPointCorp/qtile,farebord/qtile,bavardage/qtile,qtile/qtile,rxcomm/qtile,ramnes/qtile,jdowner/qtile,nxnfufunezn/qtile,kseistrup/qtile,flacjacket/qtile,aniruddhkanojia/qtile,kiniou/qtile,EndPointCorp/qtile,frostidaho/qtile,himaaaatti/qtile,encukou/qtile,frostidaho/qtile,w1ndy/qtile,kopchik/qtile,jdowner/qtile,soulchainer/qtile,apinsard/qtile,aniruddhkanojia/qtile,andrewyoung1991/qtile,StephenBarnes/qtile,encukou/qtile,kynikos/qtile,zordsdavini/qtile,dequis/qtile,flacjacket/qtile,kopchik/qtile,andrewyoung1991/qtile,kynikos/qtile,cortesi/qtile,xplv/qtile,kseistrup/qtile,himaaaatti/qtile