Mistextreme/git-hub-dashboard ? reverse-engineered prompt

Build me a simple but polished GitHub dashboard web app. I want someone to be able to type in a GitHub username and instantly see a useful overview of that account in one place. Show the profile basics like avatar, bio, followers, following, and public repo count, then list repositories with helpful details like stars, forks, main language, and last updated. It would be great to have search and sorting for repos, clear loading and error states, and a clean responsive layout that looks good on desktop and mobile.

If it makes sense, include a small section for recent activity or contribution related info when the GitHub API allows it. Keep the interface modern and easy to scan, with cards, simple filters, and sensible empty states. I do not need anything overly complex, just something that feels complete and nice to use right away. Please make sure it runs locally without extra setup, and look up the current GitHub API docs online if you need to.