use core's I18n load mechanism

frontend/app/reporting_engine-app.js

@@ -27,8 +27,7 @@
 //++
 
 // load all js locales
+var LoadLocales = require('app/plugins/load-locales.module').LoadLocales;
 var localeFiles = require.context('../../config/locales', false, /js-[\w|-]{2,5}\.yml$/);
-localeFiles.keys().forEach(function(localeFile) {
+
-  var locale = localeFile.match(/js-([\w|-]{2,5})\.yml/)[1];
+LoadLocales.files(localeFiles);
-  I18n.addTranslations(locale, localeFiles(localeFile)[locale]);
-});