removed SizedBox

flutter/lib/desktop/pages/port_forward_page.dart

@@ -179,9 +179,7 @@ class _PortForwardPageState extends State<PortForwardPage>
         buildTunnelInputCell(context,
             controller: remotePortController,
             inputFormatters: portInputFormatter),
-        SizedBox(
-          width: _kColumn4Width,
-          child: ElevatedButton(
+        ElevatedButton(
           style: ElevatedButton.styleFrom(
               elevation: 0, side: const BorderSide(color: MyTheme.border)),
           onPressed: () async {
@@ -208,7 +206,6 @@ class _PortForwardPageState extends State<PortForwardPage>
             translate('Add'),
           ),
         ).marginAll(10),
-        ),
       ]),
     );
   }