Integrate the frontend, backend, and a live Supabase database to create a fully functional web application. Ensure that the application interacts with the Supabase database for all data operations, avoiding the use of any mock or sample data. Implement the necessary API calls and data handling logic to facilitate seamless communication between the frontend and the Supabase database. The application should allow users to perform CRUD operations (Create, Read, Update, Delete) on the data stored in the Supabase database. Include error handling and user feedback mechanisms to provide a smooth user experience. The application should be designed to handle real-time data updates and synchronization with the Supabase database.