Fix crashes for context menu on empty query
Fix crashes for context menu on empty query

Fixed issue #434, thanks @pieper126

zlphoenix/Wox,danisein/Wox,medoni/Wox,dstiert/Wox,medoni/Wox,Megasware128/Wox,zlphoenix/Wox,jondaniels/Wox,jondaniels/Wox,yozora-hitagi/Saber,Megasware128/Wox,danisein/Wox,JohnTheGr8/Wox,dstiert/Wox,dstiert/Wox,yozora-hitagi/Saber,Launchify/Launchify,Launchify/Launchify,JohnTheGr8/Wox