Add x.com provider

[adrien-chinour]

Adding x.com as provider due to twitter rebranding.

It's the same oEmbed api but with domain x.com.

Using same provider but with x.com content not working (404) :

curl --request GET -iL --url 'https://publish.twitter.com/oembed?url=https://x.com/Interior/status/507185938620219395'

Using oEmbed api on platform.x.com working (302->200) :

curl --request GET -iL --url 'https://publish.x.com/oembed?url=https://x.com/Interior/status/507185938620219395'

#710

[iamcal]

Your PR has been merged and site has been updated, thanks.

Using the central registry via HTTP is highly discouraged - you should instead use the discovery mechanism to allows services to consume OEmbed resources: https://oembed.com/#section4

If you need to consume the registry data, please use the NPM package as detailed in the README.