Add Spotify and Settings buttons, add Apple Music icon

[TRRAXT]

sources:
- icon: mdi:youtube
  name: YouTube
- icon: mdi:plex
  name: Plex
- icon: mdi:spotify
  name: spotify
- icon: mdi:music
  name: Apple Music

I wanna use Spotify, but it's doens't open (but have icon, lol). Apple Music works, but has no icon. And ofc, how to add settings button? This doesn't work:

- icon: mdi:music
  name: Settings

huh, forgot to add, can somehow add buttons for LG Voice Assistant and Yandex.Alice? (Both are system apps on TV) TV: [LG] webOS QNED876RA

[Ventavox]

Spotify is probably integrated, but under a different name. For me it was "Spotify – Musik und Podcasts".

You can find a list of all sources in the LG entity. See here https://github.com/madmicio/LG-WebOS-Remote-Control/issues/122

The icons you can add manually and use a path to use that icon.