- Updated all Chat component styles (Chat, MessageInput, MessageList, ConversationList)
- Replaced purple/pink gradients with cyan/green gaming theme
- Implemented glassmorphism effects with backdrop blur
- Updated message bubbles with gradient for own messages, dark glass for others
- Changed all light backgrounds to OLED-friendly pure black
- Added cyan glow effects and shadows throughout
- Installed react-router-dom dependency
- Updated Demo.css with full dark theme
- All components now match Astro landing site aesthetic
