pageview only enabled marp preview

apps/app/src/components/Page/PageView.tsx

@@ -132,7 +132,7 @@ export const PageView = (props: Props): JSX.Element => {
     return (
       <>
         <PageContentsUtilities />
-        <RevisionRenderer rendererOptions={rendererOptions} markdown={markdown} />
+        <RevisionRenderer rendererOptions={rendererOptions} markdown={markdown} isSlidesOverviewEnabled={true}/>
       </>
     );
   };