fix console error on hidden syntax-highlight directive

awx/ui/client/lib/components/syntax-highlight/syntax-highlight.directive.js

@@ -35,6 +35,9 @@ function atSyntaxHighlightController ($scope, AngularCodeMirror) {
                 scrollbarStyle: null,
             }
         });
+        if (document.querySelector(`.ng-hide #${$scope.name}_codemirror`)) {
+            return;
+        }
         codeMirror.showTextArea({
             scope: $scope,
             model: varName,