chore(ui): bump react-i18next to latest to match other i18n deps

Author: psychedelicious

invokeai/frontend/web/package.json

@@ -90,7 +90,7 @@
     "react-error-boundary": "^4.0.13",
     "react-hook-form": "^7.53.0",
     "react-hotkeys-hook": "4.5.0",
-    "react-i18next": "^14.1.3",
+    "react-i18next": "^15.0.2",
     "react-icons": "^5.3.0",
     "react-redux": "9.1.2",
     "react-resizable-panels": "^2.1.4",