[EKS] [request]: Autogenerate update-kubeconfig command in console

It'd be useful for new users to learn how to set up their kubeconfig by directly copy/pasting the command from the console. Autogenerate the following command on the EKS cluster console:

```
aws eks update-kubeconfig --name={CLUSTER} --region={REGION}
```

The issue identifies the EKS cluster console as the entry point and provides the expected aws eks update-kubeconfig command. Start by locating the EKS console implementation and how cluster name and region are exposed; done means users can copy a correctly populated command for each cluster.

Written by the indexing model from the issue text.