v2 - Improve the Auth Workflow

[waldothedeveloper]

The token expires after 24 hours. Improve the app so that it "refreshes" the token for the user, which would result in fewer login screens for the user and a better UX.

[waldothedeveloper]

The react-spotify-auth package doesn't offer a refresh_token, which is being requested here by some fellow devs:
kevin51jiang/react-spotify-auth#3

If I'm not mistaken, I would need a server-to-server environment to work with a refresh_token from Spotify API to be able to request additional tokens to avoid the annoying situation of having to sign in to the app every two hours. But ReactJS is a client-only application...

https://developer.spotify.com/documentation/general/guides/authorization/client-credentials/

So...while this can be achieved using NextJS or similar, it would extend the length of this project beyond the scope of creating playlists based on predefined genres.

I would like to work on the next project instead @scott-coates :)