Refactor the production Docker image

docker-compose.yaml

@@ -2,7 +2,10 @@ version: '2.4'
 
 services:
   app:
-    image: opdavies/sculpin-serve
+    build:
+      context: .
+      dockerfile: tools/docker/images/Dockerfile
+      target: app
     volumes:
       - assets:/app/source/build
       - /app/output_dev
@@ -11,9 +14,7 @@ services:
       - 8000:8000
 
   assets:
-    build:
-      context: .
-      dockerfile: tools/docker/images/node/Dockerfile
+    image: node:14
     volumes:
       - assets:/node/source/build
       - /node/node_modules