AWS CFN Stacksets console to show associated OU ids for Service-managed stacksets

### Name of the resource

Other

### Resource name

AWS CFN Console

### Description

Currently, service-managed StackSets can target Organizational Units. This will deploy stack instances into the accounts within the OU.

There is currently not functionality in the CFN console to allow users to view a list of all OUs wherein a given StackSet is deployed. Instead, users only see a list of account Ids where stack instances have been deployed.

This is a feature request to allow users to see a list of the OUs targeted by service managed StackSets from the CFN console.

### Other Details

_No response_

Start with the AWS CFN Console and the StackSets documentation for service-managed StackSets and Organizational Units. Confirm how the console currently presents deployed stack instances and identify the relevant console entry point, if available. Done means users can view the OU IDs targeted by a service-managed StackSet alongside the existing account IDs.

Written by the indexing model from the issue text.