rename backend service

docker-compose.yml

@@ -16,11 +16,11 @@ services:
       timeout: 3s
       retries: 5
 
-  app:
+  backend:
     build:
       context: ./backend
       dockerfile: Dockerfile
-    container_name: mealprep-app
+    container_name: mealprep-backend
     ports:
       - "8080:8080"
     environment:
@@ -40,9 +40,9 @@ services:
     ports:
       - "3000:3000"
     environment:
-      BACKEND_URL: http://app:8080
+      BACKEND_URL: http://backend:8080
     depends_on:
-      - app
+      - backend
 
 volumes:
   pgdata: