Portal that lifts the dialog out of the DOM position where it was declared
and mounts it at the document root.
Parameters
__namedParameters: DialogPortalProps
Returns Element
Remarks
DialogContent already wraps itself in one, so callers rarely need this
directly. It matters for tests: portalled content is not inside the
container returned by RTL's render, so assertions must go through screen
or document.
Portal that lifts the dialog out of the DOM position where it was declared and mounts it at the document root.