Fix race interstitial

[Hamms]

With the recent changes to only export English strings, we unfortunately broke the one place (that I could find) in our i18n code in which we are using an array of data; in the case of (for example) ar-SA, we were actually returning a value like:

[
  {white: "أبيض"},
  {black: "أسود أو أمريكي من أصل أفريقي"},
  nil,
  {asian: "آسيوي"},
  nil,
  nil,
  {other: "أخرى"},
  nil
]

(Note that this was only a problem for languages that had the races list partially translated; for languages that translated the whole thing we were obviously fine, and for languages that had none of them translated, the entire array fell back to English)

So instead, we convert this array into a hash and use a code constant to handle the iteration, so we're just looking up individual keys and the English fallback should now work fine:

I also cleaned up the i18n source and translation files with a simple sed script, and will do an i18n sync with these changes to make sure the translation data coming out of that is also correct.

[wjordan]

👍 looks great, thanks for the quick fix!