- Add comprehensive ARIA labels and semantic HTML structure
- Enhance SEO with Open Graph, Twitter Cards, and canonical URL
- Optimize performance by removing unused CSS code
- Improve multilingual error handling for Mastodon feed
- Update sitemap with current date
- Update README with new features
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
