feat: add remarkMermaid plugin

[ndom91]

☕️ Reasoning

• Added @theguild/remark-mermaid - https://www.npmjs.com/package/@theguild/remark-mermaid
• Now code blocks in mdx files like this:

\`\`\`mermaid
gitGraph
   commit
   commit
   branch develop
   checkout develop
   commit
   commit
   checkout main
   merge develop
   commit
   commit
\`\`\`

Will generate:

🧢 Changes

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Name	Status	Preview	Comments	Updated (UTC)
gitbutler-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Oct 7, 2024 9:21pm

[github-actions]

Broken Link Checker

1 broken links found. Links organised below by source page, or page where they were found.

1) /development/debugging

Target Link	Link Text	Reason
https://docs.rs/tauri/latest/tauri/api/path/fn.app_log_dir.html	"app log directory"	HTTP_404