反应性sliderInput在同一滑块中结束

I'd like to create a range slider where when selecting one end of the slider updates the other end of the same slider. I know the trick is in observing a change at one end and using it to update the other end. However, I am getting a behaviour where the sliders are flipping back and forth, and I can't figure out why it's not settling.I'd like to create a range slider where when se