committed 07:45AM - 15 Jan 26 UTC
Prevents taking the dimensions from oEmbed when using rich data.
It also makes …a small change to how embedded html in
`AllowlistedGenericOnebox` works, previously it would not render when
the height value was not present. I have made the height value optional,
which should be fine since the default dimensions set by the browser
(typically 150 pixels high) will be used as a fallback.