Changed network and volume names

roles/docker-listmonk/templates/docker-compose.yml.j2

@@ -5,8 +5,6 @@ services:
     image: postgres:13-alpine
     ports:
       - "9432:5432"
-    networks:
-      - listmonk
     environment:
       - POSTGRES_PASSWORD={{database_password}}
       - POSTGRES_USER={{database_username}}
@@ -17,10 +15,9 @@ services:
       interval: 10s
       timeout: 5s
       retries: 6
-    container_name: database
     volumes:
       - type: volume
-        source: listmonk-data
+        source: database
         target: /var/lib/postgresql/data
 
   application:
@@ -28,18 +25,12 @@ services:
     image: listmonk/listmonk:latest
     ports:
       - "127.0.0.1:{{http_port}}:9000"
-    networks:
-      - listmonk
     environment:
       - TZ=Etc/UTC
-    container_name: listmonk_application
     depends_on:
       - database
     volumes:
       - ./config.toml:/listmonk/config.toml
 
-networks:
-  listmonk:
-
 volumes:
-  listmonk-data:
+  database: