Group plans copy changes (#8546)

* Added new message for when user has group plan

* Changed subscription wording to group plan

* Updated copy

website/client-old/js/services/paymentServices.js

@@ -296,6 +296,7 @@ function($rootScope, User, $http, Content) {
   }
 
   Payments.cancelSubscription = function(config) {
+    if (config && config.group && !confirm(window.env.t('confirmCancelGroupPlan'))) return; 
     if (!confirm(window.env.t('sureCancelSub'))) return;
 
     var group;