ui: drop id field from verify/sync add window

ui: drop id field from verify/sync add window

the config is shared between multiple datastores with the ID as, well
the unique ID, but we only show those of a single datastore.

So if a user adds a new one with a fixed ID "12345" but a job with
that ID exists already on another store, they get a error about
duplicate IDs, but cannot relate as that duplicate job is not visible
(filtered away)

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>