UI review ticket: don't display subnets for machines that are not currently monitored
When the user disabled monitoring on the agent-kea6 application, the subnets on that application did not disappear from the subnets list. The same occurred with turning off monitoring for a DHCPv4 daemon. Utilization numbers on the subnets on this application that was not supposed to be monitored kept updating in Stork. This seems like a bug.
If the subnet is present on multiple machines, and some of those machines are actively being monitored, then of course, it is fine to display the subnet.
This user commented that he might turn off monitoring on some machines to simplify the interface to narrow the scope of what he was monitoring and that doesn't work if information from unmonitored machines is not filtered out.