Add role to global attributes

[estelle]

MDN URL

https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes

What specific section or headline is this issue about?

#list_of_global_attributes

What information was incorrect, unhelpful, or incomplete?

role is not there

What did you expect to see?

A section on role between part and slot
Role is defined in WAI-ARIA, not in WHATWG, which also needs to be added in the spec table.

There is an entire section devoted to the role attribute -- https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Roles -- but on the global attributes page, the only content is "The ARIA role attribute and the multiple aria-* states and properties, used for ensuring accessibility."

While we shouldn't include the individual aria-* attributes, because that would pollute the page, the role attribute should be added, with a mention and link to attributes

Do you have any supporting links, references, or citations?

No response

Do you have anything more you want to share?

No response