Updated Volto submodule with fixed MDN links(updated the outdated links)

[GOGETASSB23]

Description
This PR updates outdated MDN links in docs/source/blocks/block-style-wrapper.md. The previous links were either broken or redirected, which caused test failures in my earlier PR. Updating them ensures the documentation remains accurate and prevents validation errors.

Changes Made
Replaced outdated MDN links with the latest working versions.
Ensured all references correctly point to the relevant MDN documentation pages.
Issue Resolved
This update fixes the test errors caused by broken links in my previous PR.

Checklist
Updated documentation links
Verified that all links are accessible and correct
Ensured no broken references remain

---

📚 Documentation preview 📚: https://plone6--1862.org.readthedocs.build/

[GOGETASSB23]

@stevepiercy sir, if this PR gets merged, will my previous PR(adding a reference guide for cookieplone make commands) get merged as well?

[stevepiercy]

This is wrong. Do not commit submodules. Additionally the files you modified need to have content that is useful for the reader to accomplish the how-to guide.

[GOGETASSB23]

The submodules needed to be committed because the MDN links were insiide them(submodules/volto/docs/blocks/ ) , which were needed to be updated(beause they were outdated) , which caused test errors in my previous PRs .. Please let me know how to proceed, because each new PR is coming up with a new test error

[stevepiercy]

I don't think you understand what is a git submodule. It is not the content within a directory named submodules.

See Contribute to documentation for how to proceed, especially Editing external package documentation.