Update social media card

[visortelle]

• doc
• doc-required
• doc-not-needed
• doc-complete

Prviews

Figma source

https://www.figma.com/file/lBTrwpOT3qtNXmuveKVtV4/Untitled?type=design&node-id=1%3A2&mode=design&t=ayAxjguyIoIzX2fS-1

Live test

https://socialsharepreview.com/?url=https://pulsar-site-git-social-media-image-teal-tools.vercel.app/

Note for the reviewer

Need to change the domain back to pulsar.apache.org in the Docusaurus config file (multiple places).

[github-actions]

@visortelle Please add the following content to your PR description and select a checkbox:

- [ ] `doc` <!-- Your PR contains doc changes -->
- [ ] `doc-required` <!-- Your PR changes impact docs and you will update later -->
- [ ] `doc-not-needed` <!-- Your PR changes do not impact docs -->
- [ ] `doc-complete` <!-- Docs have been already added -->

[tisonkun]

Thank you! Just recover to the official URL and rebase then I can merge this PR.

Perhaps I will cleanup the unused assets later but it's another topic, lol.

[visortelle]

@tisonkun done.

[tisonkun]

Thank you! Waiting for the CI gives green.