[Feature Request] Timeout option for the onboarding UI

[kryptonit1]

Is your feature request related to a problem? Please describe.
I've got a use case where I'm showing the onboarding UI after enrollment has been completed. After this I'm displaying a pop-up using IBM Notifier asking if the user wants to open Jamf Self Service.

I've discovered that some users just leaves the onboarding UI running without closing/finishing it. And since I'm displaying a pop-up after the onboarding UI has completed I can't start the onboarding UI as a subshell since I want the onboarding UI to be closed when the pop-up appears. This causes the Jamf policy that initiates all this to keep running for a very long time in some cases, which prevents other policies from running.

Describe the solution you'd like
I would like to be able to use the -timeout argument on the onboarding UI so that it closes automatically after a pre-defined period of time. This is possible when using the pop-up UI, but not using the onboarding UI.

Describe alternatives you've considered
None

Additional context