Fix Docker errors

docker-compose.yml

@@ -1,9 +1,10 @@
 version: "3"
 
 services:
-  app:
+  preports-app:
     container_name: preports-app
     build:
+      context: ./
       dockerfile: ./Dockerfile
     env_file: ./.env.dev
     networks:
@@ -15,7 +16,7 @@ services:
       - "8080:8000"
     volumes:
       - ./app:/app
-  db:
+  preports-db:
     container_name: preports-db
     image: postgres
     env_file: ./.env.dev