Add immich service

ServeNix/configuration.nix

@@ -17,6 +17,7 @@
     ./services/gitea.nix
     ./services/gitea-runner.nix
     ./services/homepage.nix
+    ./services/immich.nix
     ./services/nextcloud.nix
     ./services/nginx-proxy-manager.nix
     ./services/pihole.nix
@@ -25,7 +26,7 @@
     ./services/whats-up-docker.nix
     ./services/wireguard-vps.nix
 
-    # Multimedia
+    # MultimediArr
     ./services/bazarr.nix
     ./services/fileflows.nix
     ./services/jellyfin.nix