Allow page scroll on mobile without closing

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The current behavior is for Huebee to close if a click/tap occurs outside the Huebee element, or if its anchor element is blurred. This works well on desktop, allowing you click outside Huebee to close it. But on mobile touch devices, this means that you cannot scroll the page and keep Huebee open. As soon as you press down outside Huebee, it closes.

Start by tracing Huebee’s outside-click and anchor-blur closing behavior, then reproduce the interaction on a mobile touch device. Done means the page can scroll without closing Huebee, while clicking outside it on desktop still closes it.

Written by the indexing model from the issue text.