Description of the new feature/enhancement

There are enterprise customers need to disable Azure Cloud Shell for their whole environment. At the moment the only known way is to use a json file. This is user specific and has to be created for each user in his profile. That is not a possible way for an enterprise environment. This feature request will be for an easy way to disable Azure Cloud Shell using a Regkey or a GPO.

Proposed technical implementation details (optional)

When a specific GPO or regkey is set, when you open terminal and choose the arrow down menu, there is no option to start an Azure Cloud Shell. Also the keyboard short cut should be disabled (ctrl+shift+3)