AURCache Stack: update container names & add stack name

Docker/Docker-Compose/AURCache/docker-compose.yml

@@ -1,5 +1,7 @@
+name: AURCache-Stack
+
 services:
-  aurcache:
+  main:
     image: ghcr.io/lukas-heiligenbrunner/aurcache:latest
     ports:
       - "${REPO_PORT:-8080}:8080" # Repository
@@ -16,7 +18,7 @@ services:
       aurcache_network:
     restart: unless-stopped
 
-  aurcache_database:
+  database:
     image: postgres:16
     volumes:
       - ${DB_PATH:-./aurcache/db}:/var/lib/postgresql/data