NIFI-12403 Improve Jolt UI Parameter Processing (#8060)

* Improved Jolt UI Parameter Processing

* Changed double quotes to single quotes per review

This closes #8060

Author: exceptionfactory

nifi-nar-bundles/nifi-standard-bundle/nifi-jolt-transform-json-ui/src/main/webapp/app/transformjson/transformjson.controller.js

@@ -408,8 +408,8 @@ var TransformJsonController = function ($scope, $state, $q, $mdDialog, $timeout,
         $scope.processorId = params.id;
         $scope.clientId = params.clientId;
         $scope.revisionId = params.revision;
-        $scope.disconnectedNodeAcknowledged = eval(params.disconnectedNodeAcknowledged);
-        $scope.editable = eval(params.editable);
+        $scope.disconnectedNodeAcknowledged = params.disconnectedNodeAcknowledged === 'true';
+        $scope.editable = params.editable === 'true';
 
         var jsonSpec = $scope.getSpec($scope.transform,$scope.jsonSpec);
         if(jsonSpec != null && jsonSpec != ""){