Fix handling of scroll events for mice
Some fixes to handle scroll events for wheel sources correctly, both regular wheels and v120 ones.
Tested on touchpad, regular mouse, and v120-wheel mouse, all of them with wl_seat < 8 and >= 8.
Some fixes to handle scroll events for wheel sources correctly, both regular wheels and v120 ones.
Tested on touchpad, regular mouse, and v120-wheel mouse, all of them with wl_seat < 8 and >= 8.