Game Controller Support

It would be so nice to just lay back and use your game controller to quickly cull, with even maybe custom button layout to choose which button does what.

e.g. PS5 Dualsense, that is even officialy supported by Apple.

X = add as keeper/5 Stars

O = reject/1 Stars

△ = Zoom

□ = highlight

Crosshair = move between photos

L1/R2 give -1/+1 stars