Add screenshot of User Feedback Widget for iOS documentation

Co-authored-by: bruno <[email protected]>

Author: cursoragent

docs/platforms/apple/common/user-feedback/index.mdx

@@ -17,6 +17,8 @@ If you're using a self-hosted Sentry instance, you'll need to be on version 24.4
 
 The User Feedback widget allows users to submit feedback from anywhere inside your application.
 
+![An example of the User Feedback Widget on iOS](./img/user-feedback-widget-ios.png)
+
 ### Pre-requisites
 
 Ensure that your project is set up with Sentry and that you have added the Sentry Cocoa SDK to your project.