Dragging not possible anymore on non-touch devices #10

Dragging of split slider is not possible (anymore) due to an incorrect assumption of the L.Browser module.

on(range, L.Browser.touch ? 'touchstart' : 'mousedown', cancelMapDrag, this)

on(range, L.Browser.touch ? 'touchend' : 'mouseup', uncancelMapDrag, this)

Tested with Google Chrome 105.0.5195.102 and version earlier.
Android/iOS is still working, only desktop browsers are affected.

Background;:

L.Browser.touch stays true even if you are using a non-touch device. It would be better to rely on global window variable like other leaflet plugins.