[NO-ISSUE] refactor how we login to jolokia

[lavocatt]

To minimize code duplication, extract the jolokia login to a new component JolokiaAuthentification. This component does the login and creates a context for its children components.

Now a developer can use this pattern to ensure the component someComponent will get in a logged in context.

const AuthenticatedComponent: FC = () => {
  const brokerName = 'someName';
  const namespace = 'someNamespace';
  const podOrdinal = 0;
  const { brokerCr } = UseGetBrokerCR(brokerName, namespace);
  return (
    <JolokiaAuthentification brokerCR={brokerCr} podOrdinal={podOrdinal}>
      <SomeComponent />
    </JolokiaAuthentification>
  );
}

[Msarawan]

LGTM. Good work Thomas.