Bump vue-i18n from 9.8.0 to 9.9.0 in /swift_browser_ui_frontend

Bumps [vue-i18n](https://github.com/intlify/vue-i18n-next/tree/HEAD/packages/vue-i18n) from 9.8.0 to 9.9.0.
- [Release notes](https://github.com/intlify/vue-i18n-next/releases)
- [Changelog](https://github.com/intlify/vue-i18n-next/blob/master/CHANGELOG.md)
- [Commits](https://github.com/intlify/vue-i18n-next/commits/v9.9.0/packages/vue-i18n)

---
updated-dependencies:
- dependency-name: vue-i18n
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

swift_browser_ui_frontend/package.json

@@ -32,7 +32,7 @@
     "sass": "^1.69.6",
     "vite": "^4.5.1",
     "vue": "^3.4.3",
-    "vue-i18n": "^9.8.0",
+    "vue-i18n": "^9.9.0",
     "vue-router": "^4.2.5",
     "vuex": "^4.1.0",
     "webpack": "^5.89.0",