Bump i18next from 25.7.3 to 25.8.4 in /Plan/react/dashboard

Bumps [i18next](https://github.com/i18next/i18next) from 25.7.3 to 25.8.4.
- [Release notes](https://github.com/i18next/i18next/releases)
- [Changelog](https://github.com/i18next/i18next/blob/master/CHANGELOG.md)
- [Commits](i18next/i18next@v25.7.3...v25.8.4)

---
updated-dependencies:
- dependency-name: i18next
  dependency-version: 25.8.4
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Plan/react/dashboard/package.json

@@ -27,7 +27,7 @@
     "bootstrap": "^5.3.8",
     "export-to-csv": "^1.3.0",
     "highcharts": "^12.4.0",
-    "i18next": "^25.7.3",
+    "i18next": "^25.8.4",
     "i18next-chained-backend": "^5.0.2",
     "i18next-http-backend": "^3.0.2",
     "i18next-localstorage-backend": "^4.3.1",

Plan/react/dashboard/yarn.lock

@@ -2290,10 +2290,10 @@ i18next-localstorage-backend@^4.3.1:
   dependencies:
     "@babel/runtime" "^7.28.4"
 
-i18next@^25.7.3:
-  version "25.7.3"
-  resolved "https://registry.yarnpkg.com/i18next/-/i18next-25.7.3.tgz#88bf15b414012a53ca87b9d408108aa81cb627cc"
-  integrity sha512-2XaT+HpYGuc2uTExq9TVRhLsso+Dxym6PWaKpn36wfBmTI779OQ7iP/XaZHzrnGyzU4SHpFrTYLKfVyBfAhVNA==
+i18next@^25.8.4:
+  version "25.8.4"
+  resolved "https://registry.yarnpkg.com/i18next/-/i18next-25.8.4.tgz#1b7ad19515d5b8b18cdc66a26386363dac6ba94f"
+  integrity sha512-a9A0MnUjKvzjEN/26ZY1okpra9kA8MEwzYEz1BNm+IyxUKPRH6ihf0p7vj8YvULwZHKHl3zkJ6KOt4hewxBecQ==
   dependencies:
     "@babel/runtime" "^7.28.4"