DOC-3021: Feature TinyMCE AI as umbrella entry and align nav ordering with plugin index

Present TinyMCE AI as a full-width top-level entry in the AI category,
with AI Chat, AI Quick Actions, and AI Review listed in the grid below
as its individual features. Reorder the left-hand navigation so plugins
within each category match the alphabetical order of the plugin index
pages, keeping nav and page consistent.

Author: kemister85

modules/ROOT/nav.adoc

@@ -253,8 +253,8 @@
 *** AI
 **** xref:tinymceai-introduction.adoc[Introduction]
 **** xref:tinymceai-chat.adoc[Chat]
-**** xref:tinymceai-review.adoc[Review]
 **** xref:tinymceai-actions.adoc[Actions]
+**** xref:tinymceai-review.adoc[Review]
 **** xref:tinymceai-models.adoc[AI Models]
 **** xref:tinymceai-limits.adoc[Limits]
 **** xref:tinymceai-integration-options.adoc[Integration Options]
@@ -298,18 +298,10 @@
 **** xref:revisionhistory.adoc[Revision History]
 **** xref:suggestededits.adoc[Suggested Edits]
 *** Content Conversion & Embedding
-**** xref:markdown.adoc[Markdown]
 **** Enhanced Media Embed
 ***** xref:introduction-to-mediaembed.adoc[Enhanced Media Embed]
 ***** xref:mediaembed-server-config.adoc[Configure Enhanced Media Embed Server]
 ***** xref:mediaembed-server-integration.adoc[Integrate Enhanced Media Embed Server]
-**** xref:pageembed.adoc[Page Embed]
-**** xref:inline-css.adoc[Inline CSS]
-**** xref:exportword.adoc[Export to Word]
-***** xref:html-to-docx-converter-api.adoc[HTML to DOCX Converter API]
-***** JWT Authentication
-****** xref:export-to-word-with-jwt-authentication-nodejs.adoc[Node.js]
-****** xref:export-to-word-with-jwt-authentication-php.adoc[PHP]
 **** Export to PDF
 ***** xref:exportpdf.adoc[Export to PDF]
 ****** xref:html-to-pdf-converter-api-v2.adoc[HTML to PDF Converter API]
@@ -318,39 +310,47 @@
 ******* xref:export-to-pdf-v2-with-jwt-authentication-php.adoc[PHP (8.4.0+)]
 ******* xref:export-to-pdf-with-jwt-authentication-nodejs.adoc[Node.js (pre-8.4.0)]
 ******* xref:export-to-pdf-with-jwt-authentication-php.adoc[PHP (pre-8.4.0)]
+**** xref:exportword.adoc[Export to Word]
+***** xref:html-to-docx-converter-api.adoc[HTML to DOCX Converter API]
+***** JWT Authentication
+****** xref:export-to-word-with-jwt-authentication-nodejs.adoc[Node.js]
+****** xref:export-to-word-with-jwt-authentication-php.adoc[PHP]
 **** xref:importword.adoc[Import from Word]
 ***** xref:docx-to-html-converter-api.adoc[DOCX to HTML Converter API]
 ***** JWT Authentication
 ****** xref:import-from-word-with-jwt-authentication-nodejs.adoc[Node.js]
 ****** xref:import-from-word-with-jwt-authentication-php.adoc[PHP]
+**** xref:inline-css.adoc[Inline CSS]
+**** xref:markdown.adoc[Markdown]
+**** xref:pageembed.adoc[Page Embed]
 *** Compliance
 **** xref:a11ychecker.adoc[Accessibility Checker]
-**** xref:linkchecker.adoc[Link Checker]
 **** xref:advanced-typography.adoc[Advanced Typography]
+**** xref:linkchecker.adoc[Link Checker]
 **** xref:introduction-to-tiny-spellchecker.adoc[Spell Checker]
 ***** xref:custom-dictionaries-for-tiny-spellchecker.adoc[Adding custom dictionaries]
 **** xref:autocorrect.adoc[Spelling Autocorrect]
 *** Productivity
 **** xref:casechange.adoc[Case Change]
+**** xref:advcode.adoc[Enhanced Code Editor]
+**** xref:advtable.adoc[Enhanced Tables]
 **** xref:formatpainter.adoc[Format Painter]
-**** xref:permanentpen.adoc[Permanent Pen]
-**** xref:introduction-to-powerpaste.adoc[PowerPaste]
-***** xref:powerpaste-options.adoc[Options]
-***** xref:powerpaste-commands-events-apis.adoc[Commands and Events]
-***** xref:powerpaste-support.adoc[Supported functionality]
-***** xref:powerpaste-troubleshooting.adoc[Troubleshooting]
-**** xref:math.adoc[Math]
+**** xref:fullpagehtml.adoc[Full Page HTML]
 **** xref:editimage.adoc[Image Editing]
+**** xref:math.adoc[Math]
 **** xref:uploadcare.adoc[Media Optimizer]
 ***** xref:uploadcare-image.adoc[Image]
 ***** xref:uploadcare-video.adoc[Video]
 ***** xref:uploadcare-documents.adoc[Files and Documents]
-**** xref:advcode.adoc[Enhanced Code Editor]
-**** xref:advtable.adoc[Enhanced Tables]
-**** xref:fullpagehtml.adoc[Full Page HTML]
-**** xref:advanced-templates.adoc[Templates]
 **** xref:mergetags.adoc[Merge Tags]
 **** xref:moxiemanager.adoc[MoxieManager]
+**** xref:permanentpen.adoc[Permanent Pen]
+**** xref:introduction-to-powerpaste.adoc[PowerPaste]
+***** xref:powerpaste-options.adoc[Options]
+***** xref:powerpaste-commands-events-apis.adoc[Commands and Events]
+***** xref:powerpaste-support.adoc[Supported functionality]
+***** xref:powerpaste-troubleshooting.adoc[Troubleshooting]
+**** xref:advanced-templates.adoc[Templates]
 **** xref:tinydrive-introduction.adoc[Tiny Drive]
 ***** xref:tinydrive-getting-started.adoc[Getting started]
 ***** Starter projects
@@ -381,36 +381,36 @@
 ** Open source plugins
 *** Core Editing
 **** xref:charmap.adoc[Character Map]
+**** xref:code.adoc[Code]
+**** xref:codesample.adoc[Code Sample]
 **** xref:directionality.adoc[Directionality]
 **** xref:emoticons.adoc[Emoticons]
 **** xref:image.adoc[Image]
+**** xref:importcss.adoc[Import CSS]
 **** xref:insertdatetime.adoc[Insert Date/Time]
 **** xref:link.adoc[Link]
 **** xref:media.adoc[Media]
 **** xref:nonbreaking.adoc[Nonbreaking Space]
-**** xref:importcss.adoc[Import CSS]
 **** xref:visualblocks.adoc[Visual Blocks]
 **** xref:visualchars.adoc[Visual Characters]
-**** xref:code.adoc[Code]
-**** xref:codesample.adoc[Code Sample]
 *** Productivity
-**** xref:searchreplace.adoc[Search and Replace]
-**** xref:fullscreen.adoc[Full Screen]
-**** xref:preview.adoc[Preview]
-**** xref:quickbars.adoc[Quick Toolbars]
 **** xref:autolink.adoc[Autolink]
 **** xref:autoresize.adoc[Autoresize]
 **** xref:autosave.adoc[Autosave]
-**** xref:wordcount.adoc[Word Count]
+**** xref:fullscreen.adoc[Full Screen]
 **** xref:help.adoc[Help]
+**** xref:preview.adoc[Preview]
+**** xref:quickbars.adoc[Quick Toolbars]
 **** xref:save.adoc[Save]
+**** xref:searchreplace.adoc[Search and Replace]
+**** xref:wordcount.adoc[Word Count]
 *** Document Organization
-**** xref:table.adoc[Table]
-**** xref:lists.adoc[Lists]
-**** xref:advlist.adoc[List Styles]
 **** xref:accordion.adoc[Accordion]
 **** xref:anchor.adoc[Anchor]
+**** xref:advlist.adoc[List Styles]
+**** xref:lists.adoc[Lists]
 **** xref:pagebreak.adoc[Page Break]
+**** xref:table.adoc[Table]
 * Accessibility
 ** xref:tinymce-and-screenreaders.adoc[Accessibility Guide]
 ** xref:keyboard-shortcuts.adoc[{productname} Keyboard shortcuts]

modules/ROOT/partials/index-pages/premium-plugins.adoc

@@ -4,15 +4,14 @@ This section lists the premium plugins available for {productname}. These plugin
 
 AI-powered features that bring content generation, transformation, and quality review directly into the editor.
 
-// TinyMCE AI is pinned first as the umbrella entry; the remaining AI plugins follow alphabetically.
-[cols="1,1"]
-|===
-
-a|
+// TinyMCE AI is presented as the top-level umbrella entry, with its individual features listed in the grid below.
 [.lead]
 xref:tinymceai-introduction.adoc[TinyMCE AI]
 
-Integrates real-time AI writing assistance into {productname}, with ready-to-use editor features and an API for custom functionality with the LLM of your choice.
+Integrates real-time AI writing assistance into {productname}, with ready-to-use editor features and an API for custom functionality with the LLM of your choice. {productname} AI includes the following features:
+
+[cols="1,1"]
+|===
 
 a|
 [.lead]
@@ -32,6 +31,9 @@ xref:tinymceai-review.adoc[AI Review]
 
 Checks content for grammar, clarity, style, and tone, and reviews AI-suggested edits inline before accepting them.
 
+a|
+// Dummy cell to even out the two-column grid (odd number of plugins).
+
 |===
 
 === Collaboration