Docker: migrate from bind mounts to named volumes

docker/jellyfin/docker-compose.yaml

@@ -0,0 +1,33 @@
+volumes:
+  config: {}
+  cache: {}
+  media:
+    external: true
+  nextcloud_data:
+    external: true
+services:
+  jellyfin:
+    image: jellyfin/jellyfin
+    container_name: jellyfin
+    environment:
+      - TZ=Europe/Helsinki
+    ports:
+      - 8096:8096
+    networks:
+      - proxy
+      - authentik
+    restart: unless-stopped
+    volumes:
+      - config:/config
+      - cache:/cache
+      - media:/media
+      - /mnt/Storage/docker/nextcloud_data/FunctionalHacker/files/Media/Music:/media/Music
+      - /etc/localtime:/etc/localtime:ro
+    devices:
+      - /dev/dri/renderD128:/dev/dri/renderD128
+      - /dev/dri/card1:/dev/dri/card0
+networks:
+  proxy:
+    external: true
+  authentik:
+    external: true