Simplify postAttachCommand in devcontainer.json

Author: hubwriter

.devcontainer/devcontainer.json

@@ -62,12 +62,7 @@
   "onCreateCommand": "npm ci",
   "postStartCommand": "nohup bash -c 'npm start &'",
   // Set the port to be public
-  "postAttachCommand": [
-    "npm set //npm.pkg.github.com/:_authToken=$GITHUB_TOKEN",
-    "npm set @github:registry=https://npm.pkg.github.com/",
-    "npm install -g @github/copilot",
-    "gh cs ports visibility 4000:public -c \"$CODESPACE_NAME\""
-  ],
+  "postAttachCommand": "gh cs ports visibility 4000:public -c \"$CODESPACE_NAME\"",
 
   // Comment out connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
   "remoteUser": "node",