Enable localized "Getting Started" tutorial translations
As can be seen at https://musescore.com/groups/getting-started-translations, the well-known Getting_Started.mscz is now being translated into more and more languages. First of all, I have to say this makes me happy. But second, this raises the question of putting in place a system to use a different translated version depending on the localization settings, and whether or how this can be implemented.
As of this posting, there are already French, Russian, Dutch, and two different Spanish versions (which we can sort out later).