If the call to "post /api/clusters_mgmt/v1/clusters/<cluster_id>/sts_commands" fails, the details returned with the error shall also be displayed in the error (along with the current message).  The details will commonly contain additional information that can help the user resolve the issue.

Example error returned:

{"kind":"Error","id":"400","href":"/api/clusters_mgmt/v1/errors/400","code":"CLUSTERS-MGMT-400","reason":"Failed to find the OCM role arn for the aws account id '<aws id>' : <nil>","operation_id":"f355da5b-b179-4c57-bc6a-cef5b06de063"}

 

Acceptance Criteria:

• If `error.reason` display in error alert (either inline or under collapsed 'More details...' section, check with UX.