feat: Complete website redesign inspired by ghostty.org

- Complete rewrite from scratch with clean, minimal design
- Inspired by ghostty.org aesthetic:
  - Clean white background with subtle borders
  - Minimal typography with proper spacing
  - Simple, focused layout
  - No excessive colors or gradients
- New structure:
  - Clean header with logo and tagline
  - Single install section with copy button
  - Feature grid with icons and descriptions
  - Language tags in clean pill format
  - Example outputs with proper formatting
  - Simple footer with essential links
- Improved readability:
  - Better typography hierarchy
  - Consistent spacing throughout
  - Clean code blocks with proper formatting
  - Responsive design for mobile
- Much cleaner and more professional appearance
- Maintains all functionality while improving aesthetics

Author: script3r