Bump flatted from 3.4.2 to 3.4.3 in /ui (#3243)

Bumps [flatted](https://github.com/WebReflection/flatted) from 3.4.2 to
3.4.3.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/WebReflection/flatted/commit/670a1bdf9dcfba02111c3034294366f10696fb53"><code>670a1bd</code></a>
3.4.3</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/50a61a90ea5ca64c114f0aa040ad127e3a97feff"><code>50a61a9</code></a>
Fix <a
href="https://redirect.github.com/WebReflection/flatted/issues/104">#104</a>
- allow <code>null</code> as replacer value</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/8aa64f460cf0c4dac9cc214c831aade28f8f2c6e"><code>8aa64f4</code></a>
solved crytical errors over dependencies</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/bb8c63cea5befd4315519cb4458c6fc07bb9cf7b"><code>bb8c63c</code></a>
Merge pull request <a
href="https://redirect.github.com/WebReflection/flatted/issues/100">#100</a>
from WebReflection/WebReflection-patch-1</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/dc2d33b7861b8b060815203fdfb56974851195dc"><code>dc2d33b</code></a>
Update issue templates</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/d1406185043f9fd7398b2d0c68e85cc33bdba209"><code>d140618</code></a>
Updated dev/dependencies</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/76141ccc1c7fbd0f278b9a937b25a6c44af214eb"><code>76141cc</code></a>
Merge pull request <a
href="https://redirect.github.com/WebReflection/flatted/issues/95">#95</a>
from WebReflection/dependabot/npm_and_yarn/picomatch-4...</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/8dc84dd0ac9689e68d023782dd717317b65a7288"><code>8dc84dd</code></a>
Bump picomatch from 4.0.3 to 4.0.4</li>
<li>See full diff in <a
href="https://github.com/WebReflection/flatted/compare/v3.4.2...v3.4.3">compare
view</a></li>
</ul>
</details>
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ui/yarn.lock

@@ -2542,9 +2542,9 @@ flat-cache@^4.0.0:
     keyv "^4.5.4"
 
 flatted@^3.2.9, flatted@^3.4.2:
-  version "3.4.2"
-  resolved "https://registry.yarnpkg.com/flatted/-/flatted-3.4.2.tgz#f5c23c107f0f37de8dbdf24f13722b3b98d52726"
-  integrity sha512-PjDse7RzhcPkIJwy5t7KPWQSZ9cAbzQXcafsetQoD7sOJRQlGikNbx7yZp2OotDnJyrDcbyRq3Ttb18iYOqkxA==
+  version "3.4.3"
+  resolved "https://registry.yarnpkg.com/flatted/-/flatted-3.4.3.tgz#be5c21e943b2d7a328bb23795ae28c98f0103a9e"
+  integrity sha512-/zipXxyO6rGvuNGDiULY9MvEGSkb2gaG4GGH4ygMi0ZZzyMHdUZBmntJmx5x1G2VuPytCwGN4xsJP6cw+sK+vQ==
 
 for-each@^0.3.3, for-each@^0.3.5:
   version "0.3.5"