fixes #21274 - determine cvv errata based on errata_counts total

This is a small change to address an edge case where when a user
would view the details of a content view version in the UI, they
may not see the Errata tab.

This was occuring in cases where the errata_counts had null
as the first entry in the result set (e.g.
errata_counts['security']==null).  Since the
version['errata_counts'] (if included) will include a
'total', this logic will use that total to decide if the
Errata tab will be shown.

engines/bastion_katello/app/assets/javascripts/bastion_katello/content-views/versions/content-view-version.controller.js

@@ -26,10 +26,11 @@
         $scope.hasErrata = function (version) {
             var found = false;
 
-            found = _.find(version['errata_counts'], function (counts) {
-                return counts !== 0;
-            });
-
+            if (version['errata_counts'] &&
+                version['errata_counts'].total &&
+                version['errata_counts'].total !== 0) {
+                return true;
+            }
             return found;
         };