Firefox scrollbar issue with media-time-range element

[akkie]

There is a scrollbar issue in Firefox when hovering over the time range slider. If you move to the right, the scroll bar gets larger and if you move to the left, it gets smaller.

Steps to reproduce:

• Go to https://www.media-chrome.org/docs/en/components/media-time-range
• Hover over the slider, the scrollbar should appear