Add comprehensive Arabic (العربية) language support to OmniTools with full RTL (Right-to-Left) functionality:
- Add Arabic to supported languages list and language selector
- Translate all 12 namespace files to Arabic (audio, csv, image, json, list, number, pdf, string, time, translation, video, xml)
- Implement RTL support with stylis-plugin-rtl for proper Arabic text rendering
- Create RTL-aware theme variants (lightThemeRTL, darkThemeRTL)
- Add automatic document direction switching based on selected language
This enables full Arabic language support for all tools and UI elements in the application, providing a native experience for Arabic-speaking users.
