tweak in keyboard scrolling behavior to make scrolling more natural, hat tip: https://github.com/blink1073/jupyter-js-filebrowser/commit/f5b3d60fb77ccf9a894454a4ce829e03ca0e71ab#diff-95026df84f7f5db6e511b01259602080R1010
tweak in keyboard scrolling behavior to make scrolling more natural, hat tip: https://github.com/blink1073/jupyter-js-filebrowser/commit/f5b3d60fb77ccf9a894454a4ce829e03ca0e71ab#diff-95026df84f7f5db6e511b01259602080R1010

afshin/phosphide,blink1073/phosphide,blink1073/phosphide,blink1073/phosphide,afshin/phosphide,afshin/phosphide,blink1073/phosphide,afshin/phosphide