fix(app): fix invalid state name (#2330)

* fix(app): fix invalid state name

* fix(app): update ui-sref

app/portainer/__module.js

@@ -287,8 +287,8 @@ angular.module('portainer.app', [])
   };
 
   var stackCreation = {
-    name: 'portainer.stacks.new',
-    url: '/new',
+    name: 'portainer.newstack',
+    url: '/newstack',
     views: {
       'content@': {
         templateUrl: 'app/portainer/views/stacks/create/createstack.html',

app/portainer/components/datatables/stacks-datatable/stacksDatatable.html

@@ -11,7 +11,7 @@
           ng-disabled="$ctrl.state.selectedItemCount === 0" ng-click="$ctrl.removeAction($ctrl.state.selectedItems)">
           <i class="fa fa-trash-alt space-right" aria-hidden="true"></i>Remove
         </button>
-        <button type="button" class="btn btn-sm btn-primary" ui-sref="portainer.stacks.new">
+        <button type="button" class="btn btn-sm btn-primary" ui-sref="portainer.newstack">
           <i class="fa fa-plus space-right" aria-hidden="true"></i>Add stack
         </button>
       </div>