Bump @azure/msal-browser from 3.24.0 to 3.26.1 in /app/frontend (#2039)

Bumps [@azure/msal-browser](https://github.com/AzureAD/microsoft-authentication-library-for-js) from 3.24.0 to 3.26.1.
- [Release notes](https://github.com/AzureAD/microsoft-authentication-library-for-js/releases)
- [Commits](AzureAD/microsoft-authentication-library-for-js@msal-browser-v3.24.0...msal-browser-v3.26.1)

---
updated-dependencies:
- dependency-name: "@azure/msal-browser"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

app/frontend/package.json

@@ -12,7 +12,7 @@
     "preview": "vite preview"
   },
   "dependencies": {
-    "@azure/msal-browser": "^3.24.0",
+    "@azure/msal-browser": "^3.26.1",
     "@azure/msal-react": "^2.0.21",
     "@fluentui/react": "^8.112.5",
     "@fluentui/react-components": "^9.54.13",