fix useFleetK8sAPIPath throwing errors

[upalatucci]

We have to guard if the cluster that we are running does not have ManagedCluster CRD installed (as it does not have acm maybe)

If no cluster provided there is no need to fire requests and waiting. We already know that its the local cluster.

Other fixes are typescripts complains during build

[openshift-ci]

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[openshift-ci]

Hi @upalatucci. Thanks for your PR.

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[KevinFCormier]

@upalatucci We are in the process of rewriting the hub name detection anyway, because accessing the ManagedCluster resources directly is not RBAC-friendly.

@nitin-dhevar Can you make sure that for useHubClusterName, we check useIsFleetAvailable. If we don't have multicluster SDK support from ACM, I'm not sure if we should return "local-cluster", undefined, or an error.

@jeswanke Can you make sure that useFleetK8sAPIPath returns the default when ACM is not available?

@vishsanghishetty Can you review the changes for event stream and get them merged?

[upalatucci]

@KevinFCormier @jeswanke we should also make sure to return the default k8s api when no cluster is provided :D as i forgot