Fix to recommend `rehype-mdx-code-props`

[karlhorky]

Initial checklist

• [x] I read the support docs
• [x] I read the contributing guide
• [x] I agree to follow the code of conduct
• [x] I searched issues and couldn’t find anything (or linked relevant results below)
• [x] If applicable, I’ve added docs and tests

Description of changes

Recommend rehype-mdx-code-props by @remcohaszing instead of the deprecated remark-mdx-code-meta

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Name	Status	Preview	Comments	Updated (UTC)
mdx	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 29, 2024 3:27pm

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Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 100.00%. Comparing base (908ff45) to head (62a7644). Report is 26 commits behind head on main.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2501 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 23 23 Lines 2693 2712 +19 Branches 2 2 ========================================= + Hits 2693 2712 +19 ```

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[wooorm]

thanks! :)

[karlhorky]

Glad to help :) thanks for the review and merge!