fix: keep assistant menu selection visible

apps/docs/docs/management/assistant.mdx

@@ -95,7 +95,8 @@ as part of the prompt.
 
 Type `@` in the composer to add permission-checked context. The nested menu contains apps, integrations,
 boards, widgets, and tools available to the current user. Homarr validates every referenced ID again on
-the server before adding it to the model context. Type `/` for common prompt shortcuts. The joined
+the server before adding it to the model context. Type `/` for common prompt shortcuts. Both menus support
+keyboard navigation and keep the active result visible while moving through long lists. The joined
 controls below the composer open a searchable model picker and the thinking-level menu. Model selection
 is stored on the conversation after a completed request. Thinking mode can be left on **Auto**, disabled,
 or set from minimal through high; explicit levels are sent using the AI SDK's provider-neutral reasoning