build(deps): bump dompurify from 2.2.9 to 2.3.0

Bumps [dompurify](https://github.com/cure53/DOMPurify) from 2.2.9 to 2.3.0.
- [Release notes](https://github.com/cure53/DOMPurify/releases)
- [Commits](https://github.com/cure53/DOMPurify/compare/2.2.9...2.3.0)

---
updated-dependencies:
- dependency-name: dompurify
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -14,7 +14,7 @@
         "@fortawesome/vue-fontawesome": "^3.0.0-4",
         "core-js": "^3.15.2",
         "css-loader": "^5.2.6",
-        "dompurify": "^2.2.9",
+        "dompurify": "^2.3.0",
         "hotkeys-js": "^3.8.7",
         "mux.js": "^5.12.0",
         "register-service-worker": "^1.7.1",