Media: Audio glyph in video controls should show greyed-out waves instead of changing width
<rdar://problem/108429922>
Pull request: https://github.com/WebKit/WebKit/pull/13109
Committed 263344@main (2eb43a99b8d4): <https://commits.webkit.org/263344@main> Reviewed commits have been landed. Closing PR #13109 and removing active labels.