Fix typo on aria-labelledby attribute

[comxd]

@see https://developer.mozilla.org/fr/docs/Web/Accessibility/ARIA/ARIA_Techniques/Using_the_aria-labelledby_attribute

• Chore (tooling change or documentation change)
• Refactor (non-breaking change which maintains existing functionality)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

• My code follows the code style of this project.
• I have added new tests for the bug I fixed/the new feature I added.
• I have modified existing tests for the bug I fixed/the new feature I added.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[mtriff]

Thanks for this!