Change Details

Currently, as of v0.26.5, we're setting `aria-haspopup` on PopupButtonWidget, introduced in T87694 Not only do we set it on a non-focusable element (the surrounding `span`). We also don't change indicate the child link as triggering element clearly. Setting `aria-haspopup` there is of no use for screenreaders. Apart from mid-future accessibility and usability improvements in T185752, it would be better to add an `id` to the description-holding `div` and add an `aria-describedby=ID` to the link on hover and focus.

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