Fix: Docs Issue update "Color and background" note on color-contrast function #41944

[angshumankishore]

Description

Motivation & Context

Type of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Refactoring (non-breaking change)
• Breaking change (fix or feature that would change existing functionality)

Checklist

• I have read the contributing guidelines
• My code follows the code style of the project (using npm run lint)
• My change introduces changes to the documentation
• I have updated the documentation accordingly
• I have added tests to cover my changes
• All new and existing tests passed

Live previews

• https://deploy-preview-{your_pr_number}--twbs-bootstrap.netlify.app/

Related issues

[coliff]

this PR isn't right... we wouldn't want to remove this part:

"...so we use our own via Sass. This means that customizing our theme colors via CSS variables may cause color contrast issues with these utilities."

[julien-deramond]

Agreed with @coliff. The final modification could be only:

- There’s currently no support for a CSS-native `color-contrast` function[...]
+ There’s currently limited support for the `contrast-color` function[...]

Please also remove the extra break lines (see "Files changed" tab).