mgr/dashboard: API Version changes do not apply to pre-defined methods (list, create...

mgr/dashboard: API Version changes do not apply to pre-defined methods (list, create etc.)

Methods like list(), create(), get() etc doesn't get applied the version.Also for the endpoints that get the version changed, the docs and the request header has still the version v1.0+ in them. So with the version reduced it gives 415 error when trying to make the request. This PR fixes this issue.

Fixes: https://tracker.ceph.com/issues/50855
Signed-off-by: Aashish Sharma <aasharma@redhat.com>