Fix docker-compose (#2388)

* deps target is not used anymore

* use nginx instead of npm run start

docker-compose.yml

@@ -6,12 +6,10 @@ services:
       context: .
       args:
         - NODE_ENV=development
-      target: deps
     container_name: excalidraw
     ports:
-      - "3000:3000"
+      - "3000:80"
     restart: on-failure
-    command: npm run start
     stdin_open: true
     healthcheck:
       disable: true