[installer] [host] remove translate function from utils:: namespace and do
in MainWindow class instead. Fix a bug in LangSelection where we returning
language name rather than locale shortcode. Add translate function to
properly load translations. Fix setLanguage slot to translate if
!=English. If English, remove translation that may have autoloaded. Add
autoloading translation functionality to MainWindow and remove from
main()
[installer] [host] remove test translate files: