Resolve UA Parser JS to version 0.7.28;

the [Slack thread there for more context][slack] 🔒.

[slack]: https://trussworks.slack.com/archives/C5B2EAX96/p1634928729001500

See related security announcements here:

- faisalman/ua-parser-js#536
- facebook/docusaurus#5769

Co-authored-by: Felipe Lee <felipe@truss.works>

package.json

@@ -82,7 +82,8 @@
     "immer": "^9.0.2",
     "url-parse": "^1.5.1",
     "y18n": "^5.0.5",
-    "webpack": "4.44.2"
+    "webpack": "4.44.2",
+    "**/ua-parser-js": "0.7.28"
   },
   "name": "client",
   "private": true,