Update Netlify configuration and dependencies for React Router integration

Commit notes

- Bump Node.js version to 24 in netlify.toml for compatibility. - Add @react-router/node and @react-router/serve dependencies in pnpm-lock.yaml for enhanced routing capabilities. - Remove outdated build and deployment scripts to streamline the process. - Delete unnecessary documentation and configuration files related to previous deployment methods.

This update ensures a smoother integration with React Router and aligns with the latest deployment practices.