Bump flatted from 3.3.2 to 3.4.2 in /WebUI

Bumps [flatted](https://github.com/WebReflection/flatted) from 3.3.2 to 3.4.2.
- [Commits](WebReflection/flatted@v3.3.2...v3.4.2)

---
updated-dependencies:
- dependency-name: flatted
  dependency-version: 3.4.2
  dependency-type: indirect
...

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

Author: dependabot[bot]

WebUI/yarn.lock

@@ -3520,9 +3520,9 @@ flat@^5.0.2:
   integrity sha512-b6suED+5/3rTpUBdG1gupIl8MPFCAMA0QXwmljLhvCUKcUvdE4gWky9zpuGCcXHOsz4J9wPGNWq6OKpmIzz3hQ==
 
 flatted@^3.2.9:
-  version "3.3.2"
-  resolved "https://registry.yarnpkg.com/flatted/-/flatted-3.3.2.tgz#adba1448a9841bec72b42c532ea23dbbedef1a27"
-  integrity sha512-AiwGJM8YcNOaobumgtng+6NHuOqC3A7MixFeDafM3X9cIUM+xUXoS5Vfgf+OihAYe20fxqNM9yPBXJzRtZ/4eA==
+  version "3.4.2"
+  resolved "https://registry.yarnpkg.com/flatted/-/flatted-3.4.2.tgz#f5c23c107f0f37de8dbdf24f13722b3b98d52726"
+  integrity sha512-PjDse7RzhcPkIJwy5t7KPWQSZ9cAbzQXcafsetQoD7sOJRQlGikNbx7yZp2OotDnJyrDcbyRq3Ttb18iYOqkxA==
 
 follow-redirects@^1.0.0, follow-redirects@^1.15.11:
   version "1.15.11"