[App] Enable help without running application

[tchaton]

What does this PR do?

This PR enables getting CLI help when connected to an app even if the app isn't running right now.

Fixes #<issue_number>

Does your PR introduce any breaking changes? If yes, please list them.

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Did you have fun?

Make sure you had fun coding 🙃

cc @Borda

[ethanwharris]

LGTM 😃