Implement network scan stop handling in SocketClient disconnect process

- Added a call to `handleScanNetworkStop` in the `handleDisconnect` method of `SocketClient` to ensure proper cleanup of network scanning sessions upon disconnection.
- Improved resource management by closing all connections in the printer and document printer managers during disconnection.

src/socket/socketclient.js

@@ -977,6 +977,7 @@ export class SocketClient {
 
   async handleDisconnect() {
     logger.info("Disconnected from FarmControl Api.");
+    await this.handleScanNetworkStop({});
     await this.printerManager.closeAllConnections();
     await this.documentPrinterManager.closeAllConnections();
     this.connected = false;