Bump markdown-it from 8.4.2 to 12.2.0 in /Source/QuestionsTabApp

Bumps [markdown-it](https://github.com/markdown-it/markdown-it) from 8.4.2 to 12.2.0.
- [Release notes](https://github.com/markdown-it/markdown-it/releases)
- [Changelog](https://github.com/markdown-it/markdown-it/blob/master/CHANGELOG.md)
- [Commits](markdown-it/markdown-it@8.4.2...12.2.0)

---
updated-dependencies:
- dependency-name: markdown-it
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Source/QuestionsTabApp/package.json

@@ -29,7 +29,7 @@
         "core-js": "^2.5.4",
         "expose-loader": "^0.7.5",
         "jquery": "^3.4.1",
-        "markdown-it": "^8.4.2",
+        "markdown-it": "^12.2.0",
         "moment-timezone": "^0.5.21",
         "npm": "^6.13.1",
         "popper.js": "^1.14.3",