Allow dl, dt and dd in sanitizer

[Frenzie]

Motivation & Context

These are inoffensive regular elements, along the same lines as ol/ul with li. Overriding the defaults for that seems silly.

Type of changes

(I guess it's somewhere in the middle.)

• 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-39376--twbs-bootstrap.netlify.app/

Related issues

#33827

[mdo]

Can't think of any reason to not include them. Thoughts @XhmikosR @GeoSot? Or @julien-deramond?

[mdo]

Approving conditionally while waiting on feedback.

[julien-deramond]

Agreed, can't think of a reason to not include them.

I've found this draft W3C Standard Proposal > HTML Sanitizer API where there's a section named The Baseline Element Allow List. These elements are mentioned in it too.