Front Nozzle brush for Prusa XL

If you use a heat bed controller cover (https://www.printables.com/model/859808-improved-prusa-xl-heat-bed-controller-cover-update) , you can't use the Dan's front nozzle wiper brush (https://www.printables.com/model/678695-nozzle-wiper-brush-pre-leveling-prusa-xl). So I modified it so that you can use the front nozzle wiper brush while using the heat bed controller cover.

After disconnecting the heatbed connector,  insert it into the middle hole of both legs first, reconnect heatbed connector, and then secure with the M3X20 screw.