Keyboard support

Please add key mapping, if not individually, at least add the following two options (as separate checkboxes).

• An ESDF layout: move R to Q, F to A, and QWEASD right by one. (that's all, v and z rarely matter in any game and I'm already used to using c to descend). Why? It's not cursed. I'm a software developer and that's where my hand expects to find everything, and it gives my pinky a lot more to do, since R and F are normally pretty important keys, it makes sense to move them to A and Q so that my 3 main fingers can work together for movement (and not be constantly interrupted by hitting R and F) and my pinky can actually have something to do besides sleep on shift.
• I'd suggest a left hand equivalent setting (just mirror the main 12x3 along the GH axis), but I don't know how left-handers normally do that.

Both of these would be separate options. ESDF remap would be applied first, and then the left hand equivalent, so that we can have left hand ESDF if we want.

Not sure how lefthanded would work with the ctrl and alt keys since on some keyboards they're only on the left.

Also, while we're at it, please use ANYTHING besides ctrl for zoop, because in SE 1 I'm CONSTANTLY copying grids by attempting to move downward while zooping, and it's pure muscle memory.