docs: redesign table of content (#12647)

* implement toc

* added to projects

* fixes and adapt for references

* added product frontmatter

* remove action menu from 404 pages

www/apps/api-reference/app/layout.tsx

@@ -58,9 +58,9 @@ export default function RootLayout({
       gaId={process.env.NEXT_PUBLIC_GA_ID}
     >
       <WideLayout
-        showToc={false}
         showBreadcrumbs={false}
         ProvidersComponent={Providers}
+        showContentMenu={false}
       >
         {children}
       </WideLayout>