Bump uikit from 3.8.1 to 3.9.1

Bumps [uikit](https://github.com/uikit/uikit) from 3.8.1 to 3.9.1.
- [Release notes](https://github.com/uikit/uikit/releases)
- [Changelog](https://github.com/uikit/uikit/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/uikit/uikit/compare/v3.8.1...v3.9.1)

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

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

package.json

@@ -20,7 +20,7 @@
         "mux.js": "^5.14.1",
         "register-service-worker": "^1.7.1",
         "shaka-player": "3.2.1",
-        "uikit": "3.8.1",
+        "uikit": "3.9.1",
         "vue": "^3.2.21",
         "vue-i18n": "^9.2.0-beta.18",
         "vue-router": "^4.0.12",

yarn.lock

@@ -8549,10 +8549,10 @@ uglify-js@3.4.x:
     commander "~2.19.0"
     source-map "~0.6.1"
 
-uikit@3.8.1:
-  version "3.8.1"
-  resolved "https://registry.yarnpkg.com/uikit/-/uikit-3.8.1.tgz#4bbd184e2743aa673224e142c7b59cd14813afdd"
-  integrity sha512-RRUcoM4OhgyP0xEFcuJ8AAcsFGFe1QHxc0izMhdrJ2XinUIGWkK5ou2Ey9e1PUa2dW2OXSEEWbp/T5/tmygq0Q==
+uikit@3.9.1:
+  version "3.9.1"
+  resolved "https://registry.yarnpkg.com/uikit/-/uikit-3.9.1.tgz#a0982f7d64572d9cd0d428364dc64d8c36c4ad47"
+  integrity sha512-ygHSXI0BEEpk21SA6gyd5ShqkNXjGVj4RKXAOsbfUJm6PS7+eBHhV25RY1+bbUVEXYgN9R3JdRNMFkSjJ9S6cQ==
 
 unbox-primitive@^1.0.1:
   version "1.0.1"