Modify mutt_ouath2.py to prompt for tenant type
This commit adds the ability to select a "tenant" in the mott_oauth2.py script through its TUI.
Tenant can be common, as was hardcoded, but can also be a UUID like string known as a tenant identifier. The help string is copied from Microsoft's Oauth2 documentation:
https://learn.microsoft.com/en-us/azure/active-directory/develop/v2-oauth2-auth-code-flow