feat: RTL support for Arabic / Hebrew message text (dir="auto")

[Musa85]

Problem

When chatting in Arabic (or other RTL languages), message text renders
left-to-right, which makes Arabic content hard to read. There is currently
no setting for text direction.

Suggested fix (minimal, non-breaking)

Forcing the whole UI to RTL would break code blocks and layout. The correct
approach is to let the browser auto-detect direction per message by adding
dir="auto" to the text containers only:

• src/components/Markdown.tsx — the wrapper <div> (around line 103)
  that wraps <ReactMarkdown>:

  <div dir="auto" className={cn(...)}>
    <ReactMarkdown ...>
    

• src/components/cc/messages/UserMessage.tsx — add dir="auto" to the
  element that renders the user's text.

With dir="auto", Arabic/Hebrew text flows right-to-left while English
text and code blocks stay left-to-right automatically. No global layout
change, no new setting required.

Environment

• codexia v0.30.0 (.deb), Linux Mint 22.2 (Ubuntu 24.04 base)
• Language tested: Arabic

[milisp]

Thank you for this excellent breakdown! This is exactly the right approach to fix RTL rendering without breaking the code block layouts.

Would you like to submit a quick Pull Request for this? I'd love to merge it and give you proper credit for the fix! If not, no worries—I can implement it myself in the next couple of days.

[Musa85]

Thank you, that sounds great! I'd prefer if you could implement it
yourself. I really appreciate it, and looking forward to seeing the
fix in the next release.

[milisp]

Awesome! I've just implemented the fix and pushed the changes. It's officially going out with the upcoming v0.31.0 release.

Thanks again for the excellent breakdown—your solution worked perfectly! Appreciate you helping make codexia better for Linux users worldwide. 🚀