if the kubeconfig is invalid, the tool window stays empty

[adietish]

Steps:

1. ASSERT: have an invalid kube config
   (ex. minikube port which is invalid/out of bounds server: "https://192.168.105.4:84437777", the correct port is 8443)
2. EXEC: launch plugin

Result:
The toolkit window stays empty.

[adietish]

The reason is that when the client is created an exception is thrown. The exception then is swallowed, and the list of contexts stays empty. It should still create the context.

AllContexts:

override val all: List<IContext>
	get() {
		lock.write {
			if (_all.isEmpty()) {
				try {
					val all = createContexts(client.get(), client.get()?.config)
					_all.addAll(all)
				} catch (e: Exception) {
====>					//
				}
			}
			return _all
		}
	}

[adietish]

Furthermore, there's no healing. Correcting the config file wont heal the toolkit window. It stays empty.