Bump ua-parser-js from 1.0.39 to 2.0.0 in /plugins/web

Bumps [ua-parser-js](https://github.com/faisalman/ua-parser-js) from 1.0.39 to 2.0.0.
- [Release notes](https://github.com/faisalman/ua-parser-js/releases)
- [Changelog](https://github.com/faisalman/ua-parser-js/blob/master/CHANGELOG.md)
- [Commits](faisalman/ua-parser-js@1.0.39...2.0.0)

---
updated-dependencies:
- dependency-name: ua-parser-js
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

plugins/web/package.json

@@ -20,7 +20,7 @@
     "website"
   ],
   "dependencies": {
-    "ua-parser-js": "1.0.39"
+    "ua-parser-js": "2.0.0"
   },
   "private": true
 }