npm install on update prod

Makefile

@@ -20,7 +20,7 @@ push:
 	git add . && git commit -m "$(msg)" && git push origin HEAD
 
 update-prod:
-	git checkout . && git pull origin master && npm run build-prod
+	git checkout . && git pull origin master && npm install && npm run build-prod
 
 reload:
 	docker exec -it kuadrado nginx -s reload
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