Allow mousewheel on preset menu

[mkruselj]

Of course, it should behave logically - mousewheel up would select previous preset, and mousewheel down would select next preset, by number :)

[mkruselj]

Testing this now, on Windows and with my MX Master S2, it jumps 2 patches at a time. Sometimes when going down right after we went up it goes by 1 patch, but then continues going down in 2 patch jumps.

[mkruselj]

Also current implementation has inverted mousewheel behavior. I would expect when I do mousewheel down, that the patch lower in the list is loaded, and vice versa. Currently it's the other way around.