i18n: Sync translations from Transifex

Thanks as always to our kind volunteer translators.

Author: chrisbobbe

static/translations/messages_gu.json

@@ -208,7 +208,7 @@
   "French": "ફ્રેંચ",
   "Galician": "ગેલિશિયન",
   "German": "જર્મન",
-  "Gujarati": "Gujarati",
+  "Gujarati": "ગુજરાતી",
   "Hindi": "હિંદી",
   "Hungarian": "હંગેરિયન",
   "Indonesian": "ઇન્ડોનેશિયન",