message: Simplify delta calculation when scrolling
diff: @@ -614,7 +614,7 @@ export class LiveSplit extends React.Component<{}, State> {
  }
  private onScroll(e: WheelEvent) {
  - const delta = Math.max(-1, Math.min(1, -e.deltaY));
  + const delta = Math.sign(-e.deltaY);
  if (delta === 1) {
  this.state.layout.scrollUp();
  } else if (delta === -1) {
  