Fix Cheatsheet examples horizontal scrolling

[julien-deramond]

Description

This PR fixes the horizontal scrolling happening on small devices in both Cheatsheet examples.

This was due to the dropdown section: if you remove it, there's no more horizontal scrolling on mobile for both Firefox and Chrome. In this dropdowns section, it comes from two places where there was a w-100 div:

<div class="btn-group w-100 align-items-center justify-content-between flex-wrap">

The idea here is to remove the end margin to avoid that extra space that causes the horizontal scrolling.

However, this fix doesn't work under 273px wide screens as there's after an issue with the Tables section.

Type of changes

• Bug fix (non-breaking change which fixes an issue)

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
• (N/A) I have added tests to cover my changes
• All new and existing tests passed

Live previews

• https://deploy-preview-40799--twbs-bootstrap.netlify.app/docs/5.3/examples/cheatsheet/
• https://deploy-preview-40799--twbs-bootstrap.netlify.app/docs/5.3/examples/cheatsheet-rtl/

Related issues

Closes #40798

[diafestivo]

Thank you for the quick response and swift solution! It works!

[louismaximepiton]

I'm fine with this. 273px seems to be a very small screen and I don't think we should handle this case tbh.