mgr/dashboard: Prevent clone when layering not enabled on pare… (#29317)

mgr/dashboard: Prevent clone when layering not enabled on parent image

Reviewed-by: Ricardo Marques <rimarques@suse.com>
Reviewed-by: Tatjana Dehler <tdehler@suse.com>

diff --cc src/pybind/mgr/dashboard/frontend/src/app/ceph/block/rbd-snapshot-list/rbd-snapshot-list.component.ts
Simple merge