Storage tab should display Vol ID instead of Vol Name on Nomad UI

[thefallentree]

Proposal

Storage tab should display vol ID instead of vol Name

by design, the CSI volume "name" should be unique and actually can't be reused since its used in the CSI driver for idempotency key.

Also the jobspec uses vol ID not vol Name to match Volume, so this tab should display vol ID instead. It can also display Name but that shouldn't be the primary thing to show.

[thefallentree]

cc @tgross