pull lfs files in Codespaces (github#26522)

Co-authored-by: Grace Park <[email protected]>

Author: peterbe

.devcontainer/devcontainer.json

@@ -10,7 +10,7 @@
 	},
 
 	// Set *default* container specific settings.json values on container create.
-	"settings": { 
+	"settings": {
 		"terminal.integrated.shell.linux": "/bin/bash",
 		"cSpell.language": ",en"
 	},
@@ -34,8 +34,8 @@
 	"forwardPorts": [4000],
 
 	// Use 'postCreateCommand' to run commands after the container is created.
-	"postCreateCommand": "npm ci && npm run build",
-		 
+	"postCreateCommand": "git lfs pull && npm ci",
+
 	// Comment out connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
 	"remoteUser": "node"