permissions dialog: fix save button text

src/Umbraco.Web.UI.Client/src/views/content/rights.html

@@ -42,7 +42,7 @@
                 <localize key="general_cancel">Cancel</localize>
             </a>
             <button class="btn btn-primary" ng-click="save()" ng-disabled="busy">
-                <localize key="actions_save">Save</localize>
+                <localize key="buttons_save">Save</localize>
             </button>
         </div>