fixed allready forwarded port checking

Signed-off-by: Jonah Iden <jonah.iden@typefox.io>

packages/remote/src/electron-browser/port-forwarding/port-forwarding-service.ts

@@ -77,7 +77,7 @@ export class PortForwardingService {
             return false;
         }
 
-        const port = parseInt(address.split(':')[1]);
+        const port = parseInt(address.includes(':') ? address.split(':')[1] : address);
 
         return !this.forwardedPorts.some(p => p.localPort === port);
     }