I noticed that some parts (like FileUpload.js) do not have any kind of internationalization for JavaScript and have some "TODOs".
I did not understand whether the problem affects only strings with parameters, or all strings.
So we should first check:
- Understand if simple strings without parameters already have a way to be translated
- Think something for strings with parameters (for example FormatUnicorn) - https://stackoverflow.com/a/18234317