Update @azure/msal-browser and @azure/msal-react to latest versions

Co-authored-by: pamelafox <[email protected]>

Author: Copilot

app/frontend/package-lock.json

@@ -12,8 +12,8 @@
     "preview": "vite preview"
   },
   "dependencies": {
-    "@azure/msal-browser": "^3.26.1",
-    "@azure/msal-react": "^2.2.0",
+    "@azure/msal-browser": "^4.16.0",
+    "@azure/msal-react": "^3.0.16",
     "@fluentui/react": "^8.112.5",
     "@fluentui/react-components": "^9.56.2",
     "@fluentui/react-icons": "^2.0.265",