Fix broken SVG animation

[lionralfs]

This PR changes some CSS selectors. Previously, elements in the shadow-root created via <use> weren't targeted. Also directly rotate the .diagram-refresh element and give it a transform-origin.

Visually tested (locally) in latest FF, Chrome and Safari.

Note: this probably needs to be propagated to all the other translated versions of this article. Unless you have a way to automate this, I'd be willing to manually do this.

Fixes: #9493

Target Live Date: YYYY-MM-DD

• [ ] This has been reviewed and approved by (NAME)
• [x] I have run npm test locally and all tests pass.
• [ ] I have added the appropriate type-something label.
• [x] I've staged the site and manually verified that my content displays correctly.

CC: @petele

[lionralfs]

Closing this, as the article now redirects to the web.dev version, where the animation works.