fix: user server port for websocket connection by default

Author: alexander-akait

lib/utils/DevServerPlugin.js

@@ -49,8 +49,8 @@ class DevServerPlugin {
 
     /** @type {string} */
     const port =
-      options.client && options.client.port
-        ? `&port=${options.client.port}`
+      (options.client && options.client.port) || options.port
+        ? `&port=${options.client.port || options.port}`
         : '';
 
     /** @type {string} */