Deleting an app without permissions doesn't show an error in the console, it fails silently

**App Id**: Any app
**Region**: us-east-1

**Issue/question**
I was trying to delete an Amplify App from the console and it wouldn't get deleted. I tried it many times without understanding why it wasn't being deleted. Turned out that my IAM role policy had an explicit `Deny` for `amplify:deleteApp`. I realized that after opening the Developer console in my browser and seeing a log that said _User X does not have delete permissions on app Y due to an explicit deny_.

Showing an error in the console would have saved me some time debugging this.

**Error message**
No error was shown in the UI. Nothing would happen.

Start with the Amplify console's app-deletion flow and reproduce the case using an IAM role with an explicit deny for amplify:deleteApp. Compare the silent UI behavior with the Developer console log; done means the console visibly reports the permission failure instead of appearing to do nothing.

Written by the indexing model from the issue text.