Clean up languages for new tor check
https://check.torproject.org/?lang=ko vs https://check.torproject.org/?lang=ko_KR
One is labelled "Korean", the other is labelled "Korean (Korea)". What's up there? They look like quite different translations too.
Also there appears to be a "Polski" and a "Polish (Poland)".
Also the Farsi one says Persian rather than Farsi, and doesn't say it in Farsi.
Where did we get our current list of languages and names for them?
We should sort out a plan for which ones to include, so we can avoid duplicates. Perhaps the duplicates are on the Transifex side, and we should push back upstream to make sure we aren't encouraging duplicate work?