So I got a very weird problem, I just initialized my app using npx create-react-app, deletec unnecessary files, made an eslint and prettier config and ran the app and I see two problems here, the first is my app doesn't display App.js content, and the second is that 'link' to my app is not just localhost:3000 as always, it is
http://localhost:3000/*github username*/*repo name*
Someone had a problem like this? What can I do?