Authentication on all desktop platforms is broken

[lmore377]

Describe the bug
Attempting to start Spotify Connect from any desktop client results in 403 errors, similar to issue #1179. If started from android or iOS, authentication works fine. If librespot is given credentials with -u and -p then desktop clients work but only for the logged in user.

To reproduce
Steps to reproduce the behavior:

1. Launch librespot without -u or -p
2. Connect with any desktop client (Windows, Linux, macOS)
3. Click play on any song
4. Console fills with 403 and similar errors

Log
This log is from me connecting from a linux client but the output is almost identical to windows & macos. I obfuscated some IDs but the log is otherwise as-is. I ran librespot with -G -H to prevent any issues from caching.

linux.log

Host (what you are running librespot on):

• OS: Debian 12
• Platform: x86_64

Additional context
This issue is fixed by #1220 but I noticed that the PR seems stale. Could I create my own PR with the same changes?

[roderickvd]

Additional context This issue is fixed by #1220 but I noticed that the PR seems stale. Could I create my own PR with the same changes?

Of course, or maybe clone that user's branch, resolve the outstanding review comments and we'd be good to go!