[slider] Range slider thumbs can be dragged past the other thumb

[mj12albert]

Bug report

Current behavior

From #1600 (comment)

Screen.Recording.2025-03-24.at.9.08.52.pm.mov

Expected behavior

Do not go past the another thumb

Reproducible example

https://deploy-preview-1600--base-ui.netlify.app/react/components/slider#range-slider

Base UI version

alpha.7/latest

[mj12albert]

The issue is that since the value and positioning are separate, when dragging validateMinimumDistance needs to compare the % value here as well: https://github.com/mui/base-ui/blob/master/packages/react/src/slider/control/useSliderControl.ts#L105