Apple Music para Ubuntu

Launches Google Chrome with `--app=https://music.apple.com` (a window without bars or tabs, like a native app) using a separate profile at `~/.config/apple-music-chrome`: the Apple ID login persists between sessions, it does not mix with your regular Chrome, and Chrome ships the Widevine DRM needed for playback. On start it checks apt for Chrome updates and offers to update before opening. The installer copies the launcher, registers the app, installs the icon and pins it to the dock.