Improve how errors connecting to api-server are handled

[aledbf]

In case of errors like issues with serviceaccounts the current code does not show information in the logs. To see something useful is required to increase the verbose level at least to 3.

We should change this and replicate what the dashboard shows when is not possible to reach the api-server

Using HTTP port: 9090
Creating API server client for https://192.168.3.1:443
Error while initializing connection to Kubernetes apiserver. This most likely means that the cluster is misconfigured (e.g., it has invalid apiserver certificates or service accounts configuration) or the --apiserver-host param points to a server that does not exist. Reason: the server has asked for the client to provide credentials
Refer to the troubleshooting guide for more information: https://github.com/kubernetes/dashboard/blob/master/docs/user-guide/troubleshooting.md