Feature: add navidrome support

[ForeverEndeavor]

This PR adds initial support for displaying now playing song information from Navidrome using the Subsonic API. The widget will display the currently-playing song for all users currently connected to the provided Navidrome server.

Configuration

services.yaml

- Navidrome
    icon: navidrome.png
    href: http://<url>:<port>
    description: Bangers and Kool-Aid Jammers
    widget:
      type: navidrome
      url: http://<url>:<port>
      user: <user>
      token: <token>
      salt: <salt>

For example:

- Navidrome
    icon: navidrome.png
    href: http://localhost:4533
    description: Bangers and Kool-Aid Jammers
    widget:
      type: navidrome
      url: http://localhost:4533
      user: navidrome
      token: 9e686d7eb61b8639642c6dfc26b23c7e
      salt: ca976fd9

Generating salt and token values

Navidrome currently supports Subsonic API version 1.16.1: https://www.navidrome.org/docs/developers/subsonic-api/

For detailed information on how to generate salt and token values for authentication, see the Subsonic API documentation page: http://www.subsonic.org/pages/api.jsp

Preview

[shamoon]

Thanks for the PR. Im wondering about making this look a bit more like the Plex / Emby 'now playing' widgets e.g. #85 ? Not sure if the API reports data to make the progress bar part work but at least the more compact format would make sense here, I think.

[ForeverEndeavor]

Navidrome currently hasn't implemented the jukeboxControl endpoint, so controlling playback would not work. Likewise, the Subsonic API doesn't expose information regarding current offset of the playing song, so I don't think the progress bar part would work either.

I agree re: the compact format comment; it's something I was thinking about as a future implementation given time constraints and the fact that I'm not a seasoned Javascript guy by any means :). The PR was meant to be a simple implementation that would be improved/iterated on over time.

[shamoon]

Please take a look at my changes, yields this (screenshot attached) =)

[ForeverEndeavor]

This looks pretty hot. Let me pull the changes and see how multiple users looks with it.

[shamoon]

Heh, I had it that way before =)

Please check the last force-push, I fixed the linting issue too

[ForeverEndeavor]

Works for multiple users!

One issue is with really long artist/song/album lengths - see example below. Maybe a scrolling option for cases like these?

[shamoon]

Ha, dont sound so surprised 😝

I would say for a purely informational widget in a dashboard app that the length limitation is OK, the other now playing widgets do the same.

[ForeverEndeavor]

That's fair - can always bedazzle it later if it's really wanted.

Everything looks good to me!

[ItsNoted]

Can this display number of albums and songs too? I'd like to see this information over who's listening to what.

[github-actions]

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