DOC-3468: Address remaining PR feedback — id scope, floating sidebar, antora revert

- Revert antora.yml live demo URL from 8-dev to 8
- Scope custom action `id` to menu items only (confirmed from source:
  addMenuItem only, no addButton) — remove quickbars/toolbar references
- Remove dedicated floating sidebar ToggleSidebar section; replace with
  sidebar-type-agnostic NOTE (TINY-14243 made API identical for both)
- Clean up id example to remove misleading quickbars config

Author: kemister85

antora.yml

@@ -10,7 +10,7 @@ asciidoc:
     companyurl: https://www.tiny.cloud
     cdnurl: https://cdn.tiny.cloud/1/no-api-key/tinymce/8/tinymce.min.js
     tdcdnurl: https://cdn.tiny.cloud/1/_your_api_key_/tinydrive/8/tinydrive.min.js
-    tinymce_live_demo_url: https://cdn.tiny.cloud/1/qagffr3pkuv17a8on1afax661irst1hbr4e6tbv888sz91jc/tinymce/8-dev/tinymce.min.js
+    tinymce_live_demo_url: https://cdn.tiny.cloud/1/qagffr3pkuv17a8on1afax661irst1hbr4e6tbv888sz91jc/tinymce/8/tinymce.min.js
     tinydrive_live_demo_url: https://cdn.tiny.cloud/1/qagffr3pkuv17a8on1afax661irst1hbr4e6tbv888sz91jc/tinydrive/8/tinydrive.min.js
     webcomponent_url: https://cdn.jsdelivr.net/npm/@tinymce/tinymce-webcomponent/dist/tinymce-webcomponent.min.js
     jquery_url: https://cdn.jsdelivr.net/npm/@tinymce/tinymce-jquery@2/dist/tinymce-jquery.min.js

modules/ROOT/pages/tinymceai-actions.adoc

@@ -83,7 +83,7 @@ tinymce.init({
 
 [NOTE]
 ====
-AI controls are not added to the xref:quickbars.adoc#quickbars_selection_toolbar[`+quickbars_selection_toolbar+`] automatically; add the desired toolbar button identifiers to that option when they should appear there. Custom actions defined by xref:tinymceai.adoc#tinymceai_quickactions_custom[`+id+`] can also be listed in `+quickbars_selection_toolbar+`.
+AI controls are not added to the xref:quickbars.adoc#quickbars_selection_toolbar[`+quickbars_selection_toolbar+`] automatically; add the desired toolbar button identifiers to that option when they should appear there.
 
 For example:
 

modules/ROOT/partials/commands/tinymceai-cmds.adoc

@@ -19,10 +19,7 @@ tinymce.activeEditor.execCommand('ToggleSidebar', false, 'tinymceai-chat');
 tinymce.activeEditor.execCommand('ToggleSidebar', false, 'tinymceai-review');
 ----
 
-[[tinymceai-floating-sidebar-api]]
-=== Floating sidebar and `+ToggleSidebar+`
-
-When xref:tinymceai.adoc#tinymceai_sidebar_type[`tinymceai_sidebar_type`] is `+'floating'+`, the core `+ToggleSidebar+` command, the `+ToggleSidebar+` event, and `+queryCommandValue('ToggleSidebar')+` work the same as for a static sidebar for `+'tinymceai-chat'+` and `+'tinymceai-review'+`.
+NOTE: These commands work regardless of xref:tinymceai.adoc#tinymceai_sidebar_type[`tinymceai_sidebar_type`] (`+'static'+` or `+'floating'+`). The `+ToggleSidebar+` event and `+queryCommandValue('ToggleSidebar')+` also behave the same for both sidebar types.
 
 [[tinymceai-plugin-commands]]
 === TinyMCE AI plugin commands

modules/ROOT/partials/configuration/tinymceai_options.adoc

@@ -440,7 +440,7 @@ Array of custom actions rendered in the Custom submenu within the AI Quick Actio
 * `+prompt+`: The prompt sent to the AI
 * `+type+`: `+'action'+` or `+'chat'+`
 * `+model+`: Required for `+action+` type only
-* `+id+` (optional): Stable identifier for the custom action. When set, the same string can be listed in xref:tinymceai.adoc#tinymceai_quickactions_menu[`tinymceai_quickactions_menu`] so the action appears as its own top-level menu item instead of only inside the Custom submenu. The identifier can also be used in xref:quickbars.adoc#quickbars_selection_toolbar[`+quickbars_selection_toolbar+`], the xref:menus-configuration-options.adoc#menu[`+menu+`] option, or any other toolbar or menu configuration that accepts control identifiers.
+* `+id+` (optional): Stable identifier for the custom action. When set, the same string can be listed in xref:tinymceai.adoc#tinymceai_quickactions_menu[`tinymceai_quickactions_menu`] so the action appears as its own top-level menu item instead of only inside the Custom submenu. The identifier can also be used in the xref:menus-configuration-options.adoc#menu[`+menu+`] option or any other menu configuration that accepts menu item identifiers.
 
 *Type:* `+Array+` of `+Object+`
 
@@ -480,9 +480,8 @@ tinymce.init({
 ----
 tinymce.init({
   selector: 'textarea',
-  plugins: 'quickbars tinymceai',
+  plugins: 'tinymceai',
   toolbar: 'tinymceai-chat tinymceai-quickactions tinymceai-review',
-  quickbars_selection_toolbar: 'tinymceai-quickactions | bold italic',
   tinymceai_quickactions_menu: [
     'ai-quickactions-chat-prompts',
     'ai-quote',