Specify data collected in HTTP client errors (#11055)

* add additional informations what will be sent to sentry in the dart http integration

* rearranged text for better readability

* add date scrubbing info

Author: martinhaintz

docs/platforms/dart/integrations/http-integration.mdx

@@ -52,6 +52,26 @@ try {
 }
 ```
 
+When an error occurs, the following information is captured and sent to Sentry:
+
+The marked elements (\*) are affected by the default enabled [server-side data scrubbing](https://docs.sentry.io/security-legal-pii/scrubbing/server-side-scrubbing/).
+To implement client side data scrubbing, go to [client-side data scrubbing in Flutter](https://docs.sentry.io/platforms/flutter/data-management/sensitive-data/).
+
+Request details:
+
+- Method
+- URL \*
+- Headers \*
+- Body \*
+- Content length
+- Duration
+
+Response details:
+
+- Headers \*
+- Content length
+- Status code
+
 This is an opt-out feature. The following example shows how to disable it: