docs: add indexing comparison table to hidden pages (#6146)

* docs: add indexing comparison table to hidden pages

* docs: remove emojis from indexing comparison table

* docs: use sentence case for table column headers

Author: Bhavysinghal

organize/hidden-pages.mdx

@@ -94,6 +94,15 @@ To hide a tab, add the `hidden` property for the tab in your `docs.json` file:
 
 By default, hidden pages don't appear in indexing for search engines, documentation site search, or as AI assistant context. You have two ways to include hidden content in search and indexing.
 
+The following table summarizes how each property affects page visibility and indexing:
+
+| Property | Sidebar navigation | Site search | Sitemap | Search engine indexing | AI assistant context |
+|---|---|---|---|---|---|
+| `hidden: true` | Hidden | Excluded | Excluded | Excluded | Excluded |
+| `noindex: true` | Visible | Included | Included | Excluded | Excluded |
+| `searchable: true` (on hidden tab/group) | Hidden | Included | Included | Included | Included |
+| `seo.indexing: "all"` (in `docs.json`) | Hidden | Included | Included | Included | Included |
+
 ### Include all hidden pages
 
 To include every hidden page across your site in search, sitemaps, and AI context, add the `seo` property to your `docs.json`: