Feature request: Fix gamepad support

I tried playing my Pulp game in-browser with gamepads and found that, while support is built in, the buttons aren't mapped correctly. Left/right is mapped to up/down, and up/down doesn't do anything. I tested with a PS4 controller and a Switch Pro controller. Would be lovely to be able to test my Pulp games using a gamepad, to better reflect the Playdate experience. Thanks for considering!