Update devcontainer.json

.devcontainer/devcontainer.json

@@ -20,14 +20,11 @@
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
 	// "forwardPorts": [],
 	// Use 'postCreateCommand' to run commands after the container is created.
-	"postCreateCommand": [
-		"cp .env.template .env ",
-		"pnpm install"
-	],
+	"postCreateCommand": "cp .env.template .env && pnpm install",
 	// Comment out to connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
 	"remoteUser": "node",
 	"features": {
 		"docker-in-docker": "20.10",
 		"github-cli": "latest"
 	}
-}
+}