Tidal-dl-ng

- Fixes regarding empty metadata tags (also fixes 1).
- CLI downloader extended to handle playlists and mixes.
- `Download.track()` now handles logger functions.
- GUI build for macOS and asset upload.

- Fixed: Exception on missing file read (config, token) instead of creation.

- Fixed: GUI dependencies are treated as extra now (pip).

- Fixed: GUI dependencies are treated as extra now (pip).

- GUI dependencies are treated as extra now (pip).

- Fixed "Mix" download.
- Fixed relative imports.
- Fixed PyPi build.
- Fixed crash on lyrics error.