ui: fire config change: always pass required parameters

ui: fire config change: always pass required parameters

As otherwise the listeners might choke on the missing records.

For our usage it was only a problem when one changed the tree UI
options while having the Datacenter -> Summary panel open, as that
listens to the UI changes to adapt the shown gauges for e.g., memory,
storage, or CPUs, and thus actually uses the current result (unlike
we do in the store load listener).

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