Reduce all uses of Unstructured to the simpler form, and avoid asking
for mapper or typer unless it is required. Use Typed() for places that
previously used VersionedObject, and remove paths for versioned objects
from code that is now using unstructured.
If a user edits last-applied-configuration and it doesn't have an
apiVersion or kind, the command should error out. Now that we check for
kind and version on the unstructured object typer, the previously
passing test now correctly fails. Add a new explicit failure test and
make the existing test pass.