fix: complete widget modernization review

apps/docs/docs/widgets/media-request-list/index.mdx

@@ -46,6 +46,7 @@ import mediaRequestList from "./img/list.png";
 
 - Approve / decline a request by clicking on the thumbs up or down icon.
 - Hover over the widget to reveal a **search button** that opens Spotlight in media request search mode, scoped to the widget's integrations.
+- A warning indicator identifies unavailable integrations without hiding requests returned by healthy integrations.
 
 <WidgetInteractionGuide />