kube_capture should use sensible defaults when `what` param is missing or misspelled

[vladimirvivien]

As a script writer, when I used kube_capture or kube_get with a bad what param like this

kube_capture(what="objcs", groups=["apps"])

The script should default to what=objects

[vladimirvivien]

@nrb Let me know if this summarize what you need. Thanks.

[nrb]

Yep, this would work!