Fix details overlay for links in overlay mode (#16016)

Author: sgiehl

plugins/Overlay/client/translations.js

@@ -12,7 +12,7 @@ var Piwik_Overlay_Translations = (function () {
         initialize: function (callback) {
             // Load translation data
             Piwik_Overlay_Client.api('getTranslations', function (data) {
-                translations = data[0];
+                translations = data;
                 callback();
             });
         },