[iOS] vimeo.com: Full screen, wide aspect-ratio videos are vertically offset
<rdar://problem/116531089>
Pull request: https://github.com/WebKit/WebKit/pull/19863
Committed 270116@main (9af6b6771f33): <https://commits.webkit.org/270116@main> Reviewed commits have been landed. Closing PR #19863 and removing active labels.