fix(ui): reflect target response status in network monitor status dot (#2390)

Co-authored-by: henrygd <hank@henrygd.me>

internal/site/src/components/network-monitors-table/network-monitors-columns.tsx

@@ -146,6 +146,8 @@ export function getMonitorColumns(
 					color = "bg-primary/40"
 				} else if (status === SystemStatus.Down || status === SystemStatus.Pending) {
 					color = "bg-yellow-500"
+				} else if (monitor.updated && !monitor.res) {
+					color = "bg-red-500"
 				}
 				return (
 					<div className="ms-1.5 max-w-64 flex gap-2 items-center tabular-nums">