fix(node): Anr description (#11811)

Author: timfish

docs/platforms/javascript/common/configuration/integrations/anr.mdx

@@ -1,6 +1,6 @@
 ---
 title: Anr
-description: "Capture context about the environment and the device that the client is running on, and add it to events. (default)"
+description: "Capture events when the event loop is blocked and the application is no longer responding."
 supported:
   - javascript.node
   - javascript.aws-lambda