MAGETWO-56345: [Github] #5934 Untranslatable string for Authorize.net payment

- Add translation for timeout error message

app/code/Magento/Authorizenet/i18n/en_US.csv

@@ -64,3 +64,4 @@ Debug,Debug
 "Minimum Order Total","Minimum Order Total"
 "Maximum Order Total","Maximum Order Total"
 "Sort Order","Sort Order"
+"Sorry, but something went wrong. Please contact the seller.","Sorry, but something went wrong. Please contact the seller."

app/code/Magento/Authorizenet/view/frontend/web/js/view/payment/method-renderer/authorizenet-directpost.js

@@ -5,15 +5,16 @@
 define(
     [
         'jquery',
-        'Magento_Payment/js/view/payment/iframe'
+        'Magento_Payment/js/view/payment/iframe',
+        'mage/translate'
     ],
-    function ($, Component) {
+    function ($, Component, $t) {
         'use strict';
 
         return Component.extend({
             defaults: {
                 template: 'Magento_Authorizenet/payment/authorizenet-directpost',
-                timeoutMessage: 'Sorry, but something went wrong. Please contact the seller.'
+                timeoutMessage: $t('Sorry, but something went wrong. Please contact the seller.')
             },
             placeOrderHandler: null,
             validateHandler: null,