Always switch to printer tab after loading plate
Always switch to printer tab after loading plate

- Issue MatterHackers/MCCentral#3552
Printer plates should change focus to printer tab when clicked

larsbrubaker/MatterControl,unlimitedbacon/MatterControl,unlimitedbacon/MatterControl,jlewin/MatterControl,mmoening/MatterControl,unlimitedbacon/MatterControl,jlewin/MatterControl,jlewin/MatterControl,larsbrubaker/MatterControl,unlimitedbacon/MatterControl,jlewin/MatterControl,larsbrubaker/MatterControl,larsbrubaker/MatterControl,mmoening/MatterControl,mmoening/MatterControl