Print imported information after running `config import`

_Originally posted by @blanquicet in https://github.com/Azure/kubectl-aks/pull/52#discussion_r1478434793_:

If we check, we always execute `config show` after a `config import`. I started thinking that we should automatically print the imported data in the `config import` (maybe with a `--quiet` flag). Also for the documentation, it makes things more consistent. For instance:

Import node info:

```bash
kubectl aks config import
```

Run command against one of the nodes:

```bash
kubectk aks run-command --node
```

Users will take the node name from the previous `config import` output, they we don't need to ask them to also run `config show`.

Start at the `config import` command and compare its current behavior with `config show`; the issue explains that imported node information should be printed immediately. Check the related `run-command --node` usage and documentation, and consider the existing `config show` output as the expected information. Done means users can obtain the node name from `config import` without an additional `config show` step.

Written by the indexing model from the issue text.