Linthra 0.1.4 — Navidrome/Subsonic cover art hotfix.

Fixed:
- Navidrome/Subsonic cover art now displays across the app.
- Navidrome/Subsonic cover art now displays in Android Auto / media
  session, using a privacy-safe local artwork path.
- Android Auto artwork is handled without exposing tokens, salts,
  passwords, usernames, server URLs, or authenticated cover URLs.

Notes:
- Jellyfin artwork still works.
- Local embedded artwork still works.
- Cast behavior is unchanged.

No ads, no tracking, no analytics, no telemetry.
