shanwi1/MERN ? reverse-engineered prompt

Build me a simple MERN project with a clean frontend and a basic backend that work together. I want a small website that shows a few different practice style pages like a navbar, form, table, grid layout, favorites, and a simple game or task area, all with a consistent look and easy navigation. Make the frontend responsive and keep the pages simple and readable. On the backend, set up a basic API so the app can send and save data for things like form submissions or saved items. Please wire everything up so it runs smoothly from a single project, and make sure the code is organized and easy to understand. If you need to check the latest docs for anything, go ahead and look them up online.