Add inline chat

Author: grant0417

package-lock.json

@@ -41,6 +41,7 @@
     "devDependencies": {
         "@aws-toolkits/telemetry": "^1.0.272",
         "@playwright/browser-chromium": "^1.43.1",
+        "@types/he": "^1.2.3",
         "@types/vscode": "^1.68.0",
         "@types/vscode-webview": "^1.57.1",
         "@types/webpack-env": "^1.18.5",