add es to ui language dropdown

Author: Your Name

boofilsic/settings.py

@@ -444,6 +444,7 @@
     "en": _("English"),
     "da": _("Danish"),
     "de": _("German"),
+    "es": _("Spanish"),
     "fr": _("French"),
     "it": _("Italian"),
     "pt": _("Portuguese"),

locale/zh_Hans/LC_MESSAGES/django.po

@@ -271,7 +271,7 @@ msgstr "MusicBrainz"
 
 #: catalog/models/common.py:36
 msgid "WorldCat"
-msgstr ""
+msgstr "WorldCat"
 
 #: catalog/models/common.py:41
 msgid "ISBN10"