fix: Word and colour Windows workloads correctly across the UI

web/components/servers/tabs/MaintenanceTab.tsx

@@ -82,7 +82,7 @@ export function MaintenanceTab({
                                                 <span className="font-mono text-xs text-text-secondary">{u.current_version || "n/a"}</span>
                                             </Td>
                                             <Td label={isWindows ? "KB" : "Available"}>
-                                                <span className="font-mono text-xs text-success">{u.new_version}</span>
+                                                <span className="font-mono text-xs text-success">{u.new_version || "n/a"}</span>
                                             </Td>
                                         </Tr>
                                     ))}