Expose pointerEventsFromOpacity$ in views-dom

[appsforartists]

export function pointerEventsStyleFromOpacity(opacity$: ObservableWithMotionOperators<number>): ObservableWithMotionOperators<string> {
  return opacity$.threshold(.9).rewrite({
    mapping: {
      [ThresholdRegion.ABOVE]: 'inherit',
      [ThresholdRegion.WITHIN]: 'inherit',
      [ThresholdRegion.BELOW]: 'none',
    },
  });
}