Odd behaviour with 'Create new' after an instance exists

[deboer-tim]

If I have a running OpenShift Local instance, the Create new button is still enabled, and leads to a screen where I can stop the running instance but nothing else. Supporting only one instance at a time is fine, but then the button should probably be disabled or removed after creating the first one.

I'm aware this could mean there's a feature requirement on Podman Desktop, but opening here since this is where the issue surfaces and would need to make a change either way.

[evidolob]

We could remove connection factory object when we have one, this will remove Create new button.