Code block missing copy and wrap

[robdy]

After migrating to MDX v2 in #712, code blocks miss the copy and wrap functionality.

For wrapping, this might help: https://stackoverflow.com/questions/62178921/updating-parent-component-state-from-child-component-with-usestate-react-hook

Notes from #739

Perhaps check this code: https://github.com/zslabs/zslabs-v3

Solution with line wrap and numbering: https://stackoverflow.com/a/41354764/9902555

Helpful guide: https://dev.to/fidelve/the-definitive-guide-for-using-prismjs-in-gatsby-4708

Best practices?: https://www.sitepoint.com/best-practice-for-code-examples/