[Slider] Clamp thumbs position within range

[kombucha]

Description

It is possible to pass values that are outside of the defined min and max, in which case the positioning of the ui elements currently behaves unexpectedly. This change should bring the behaviour closer to what the native range input does.

• Clamp thumb and range position percentages between 0 and 100 to avoid stretching UI outside of its natural boundaries
• Added 2 cases in the Slider's Chromatic story to prevent regressions when dealing with out of bound values 🧪

In the before, the slider is stretched beyond its natural width (200px) 👀

Before	After

[kombucha]

Hey @benoitgrelard (sorry for the direct ping) 👋

Does the team have the bandwidth to review external contribution these days?
I see activity on the repo, but I also see a few PRs that are left hanging 😅

I understand if you don't, just need to know if I should start addressing this bug in user-land instead of waiting for upstream.

Thank you!

[benoitgrelard]

Thanks for your contribution @kombucha, I've left a few comments.