Fix Tailwind CSS styling configuration

- Add tailwind.config.ts with proper content paths and theme config
- Add postcss.config.js for Tailwind and autoprefixer processing
- Downgrade tailwindcss to v3.4.17 and add missing PostCSS dependencies
- Update Dockerfile to clarify build process
- Fix UI styling issues in Docker environment

docker-compose.yml

@@ -28,6 +28,7 @@ services:
     volumes:
       - ./screenshots:/app/screenshots
       - ./videos:/app/videos
+      - ./.tradingview-session:/app/.tradingview-session
     
     # Health check
     healthcheck: