fixed typescript error due to new mock page being added

Author: didoo

showcase/app/templates/page-components/app-side-nav/frameless/demo-remove-from-dom.gts

@@ -22,7 +22,7 @@ export default class PageComponentsAppSideNavFramelessDemoRemoveFromDom extends
     <MockApp>
       <:sidebar as |S|>
         {{#if this.isRendered}}
-          <S.SideNav
+          <S.AppSideNav
             @showDevToggle={{true}}
             @onToggleMinimizedStatus={{this.removeSideNavFromDOM}}
           />