fix(plugins) only broadcast plugins with actions

lib/WetSock/WetSock.js

@@ -69,15 +69,22 @@ export default class WetSock {
   handleOpen(ws) {
     const client = new SocketClient(ws.data.clientId, ws);
     this.#clients.set(client.id, client);
-    client.send({
-      event: 'plugins',
-      data: [...this.#plugins.keys()].map(key => {
+
+    const plugins = [...this.#plugins.keys()].filter(key => {
+      return typeof(this.#plugins.get(key).plugin.actions) == 'function'
+    }).map(key => {
       return {
         identifier: key,
         actions: this.#plugins.get(key).plugin.actions()
       };
-      })
     });
+
+    if(plugins.length > 0) {
+      client.send({
+        event: 'plugins',
+        data:
+      });
+    }
     this.emit('open', client);
   }