Can't change language nor extract translation files

After the vue3 migration its not possible anymore to change languages. When using the language picker nothing happens.

Also I cannot extract the translation string anymore, it seems like our script is obsolete since xgettext does not support typescript and fails to parse the file. I got the built in command working with the following file:

cat gettext.config.js                                                                                                        ░▒▓ ✔  16.14.2 Node 
module.exports = {
  output: {
    path: "./locales",
    potPath: "app.pot",
    locales: ["en", "de"],
  },
};

but it seems like its not configurable where the PO files life, so we probably need to move them all one directory up (which isn't an issue at all) to preserve all previous translations.