nuttylmao/spotify-widget ? reverse-engineered prompt

Build me a simple Spotify widget page that shows what I am listening to right now.

I want it to feel like a small clean desktop widget, with album art, song name, artist, and maybe the album or playlist name if that data is available. It should look nice by default and be easy to customize with a config screen or simple settings area, so I can change colors, size, and what info is shown without editing the code.

Make it work as a standalone HTML page with a little JavaScript and CSS, and use the images folder for any icons or visuals it needs. If there is a Spotify API or current docs I need to follow, look them up online and wire it up in the simplest reliable way. It should handle loading and error states gracefully, and not look broken if nothing is playing.