Refine friendly IdP and Role label

[monde]

Friendly IdP and Role labels don't also print out ARN value (less text clutter in the UI)

Example:

$ otka-aws-cli
System web browser will open the following URL to begin Okta device authorization for the AWS CLI

https://example.okta.com/activate?user_code=ZJVFJZNT

? Choose an IdP:  [Use arrows to move, type to filter]
> S3 IdP
  EC2 IdP
  EKS IdP
  CloudFront IdP