Dev-star-12/Todo_application — reverse-engineered prompt

Build me a simple, clean todo app in this React project. I want something that feels complete and easy to use, not just the default starter page.

The app should let me add a task, see all my tasks in a list, mark tasks as done, and remove them when I do not need them anymore. If it fits naturally, let me edit a task too. Give completed items a clear visual difference so it is obvious what is finished. A neat layout with a nice heading, input area, and buttons would be great, and it should look decent on both desktop and mobile.

Please wire up the main app so it runs right away in the browser with the usual start command, and keep the code organized and easy to follow. If you think it makes sense, save the todos in the browser so they are still there after refresh. Use good defaults and polish the little details. You can look up current React docs online if you need to.