Add missing for-attribute

[Gomez]

We had an a11y audit, these improvements were noted.

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[JeffersonBledsoe]

@plone/volto-accessibility Needs review

[stevepiercy]

Notes should describe all changes. Also added some MyST markup for inline literals.

[stevepiercy]

The failing changelog check is a lie, and can be ignored. See #6232.

The failing tests, however, cannot be ignored and must pass. I restarted them in case it was flaky and temporary.

[erral]

It doesn't change the working of the widget, just adds a11y tags. Working as expected.

[ichim-david]

@Gomez have a look at my issue https://github.com/plone/volto/pull/6249/files#r1716735124

[Gomez]

Thanks @ichim-david! This is a useful comment, i removed the duplication.

Changelog updated with @stevepiercy comments.

[stevepiercy]

Changelog is good. @ichim-david will review upon his return, or someone else can do a technical review.

[ichim-david]

@Gomez I'll work on this tomorrow as part of the Salamina sprint.

[ichim-david]

This can be merged now. The fix was good although I had to improve it due to how the checkbox component works
https://github.com/Semantic-Org/Semantic-UI-React/blob/master/src/modules/Checkbox/Checkbox.js#L201
By passing the id the label gets the htmlFor from the component without us needing to add it manually