Update and rename music-assistant-companion.md to music-assistant.md

Author: ivan-hc

apps/music-assistant-companion.md apps/music-assistant.mdapps/music-assistant-companion.md renamed to apps/music-assistant.md

@@ -1,8 +1,8 @@
-# MUSIC-ASSISTANT-COMPANION
+# MUSIC-ASSISTANT
 
  Music Assistant Companion App
 
- SITE: https://github.com/music-assistant/companion
+ SITE: https://music-assistant.io
 
  | [Applications](https://portable-linux-apps.github.io/apps.html) | [Home](https://portable-linux-apps.github.io)
  | --- | --- |