[WIP] Add web based advanced periodic table with themes

[Copilot]

• Create project structure and initialize Node.js project
• Create periodic table JSON data file with all elements
• Create server-side code with Express and WebSocket support
• Create client-side classes for periodic table interactions
• Create HTML template with Bootstrap-style framework
• Create CSS with light/dark mode theming and responsive design
• Implement sticky status bar
• Implement modal system for element details
• Ensure mobile and desktop responsiveness
• Test and verify the application

Original prompt

Web based advanced periodic table using node.js and web sockets. will utilize a JSON data file for storing the periodic table data. It will support both desktop and mobile interfaces in both light mode and dark mode themes. It will have a sticky status bar at the top, the bootstrap style framework and a modal system to display specific element data. The json schema already exists for all the data points. it will have server and client classes in js and a public/static suite of files.

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.