Feature/update i18next to v23.x (#391)

* Update i18next to v23.x

Update to version 23.2.7

* Use new "ParseKeys" (old: "TFuncKey") type

* Remove unnecessary casts to string

Not needed anymore with the latest version

package.json

@@ -31,7 +31,7 @@
     "@vitejs/plugin-react": "^4.0.0",
     "axios": "^1.4.0",
     "file-selector": "^0.6.0",
-    "i18next": "^22.5.0",
+    "i18next": "^23.2.7",
     "i18next-browser-languagedetector": "^7.0.2",
     "react": "^18.2.0",
     "react-beautiful-dnd": "^13.1.1",