akcess list display resources even when akcess allow command failed with namespaces not found

[akankshakumari393]

Describe the bug
akcess list display resources even when akcess allow command failed with namespaces not found

To Reproduce
Steps to reproduce the behavior:

• Run akcess allow --verb get --resource pods,pods/log -n kubes in scenario where kubes namespace was not present in the cluster.
• we got this error with no kubeconfig file being generated

Error: namespace kubes was not found: namespaces "kubes" not found

• Then if we run akcess list we see the id for the corresponding namespaces.

- id: fbe82f34-2ef6-4328-b1dc-bc4767deba4f
  createdAt: 2022-06-20T12:19:35.564442209+05:30
  namespace: kubes

Expected behavior
akcess list should only list ids that generated kubeconfig file and the related roles/rolebinding in the cluster.

Suggestions:
we should store accessConfig resources only when the kubeconfig is ready and roles and rolebinding are generated or only when the request is valid.