fix(apple): Add AppHangsV2 to experimental features (#12378)

Author: philipphofmann

docs/platforms/apple/common/features/experimental-features.mdx

@@ -12,6 +12,7 @@ Do you want to try some new experimental features? On the latest version of the
 - Enable <PlatformLink to="/profiling/#continuous-profiling">Continuous Profiling</PlatformLink> to get full coverage of your app's execution.
 </PlatformSection>
 - If you use Swift concurrency, stitch together stack traces of your async code with the `swiftAsyncStacktraces` option. Note that you can enable this in your Objective-C project, but only async code written in Swift will be stitched together.
+- Enable <PlatformLink to="/configuration/app-hangs/#app-hangs-v2">AppHangsV2</PlatformLink> to get more detailed app hangs. The main difference is that AppHangsV2 differentiates between fully-blocking and non-fully-blocking app hangs.
 
 <Note>
   Experimental features are still a work-in-progress and may have bugs. We