fix(livewire): resolve Echo not found error due to lazy loading timing

resources/js/app.js

@@ -3,9 +3,7 @@ import Echo from 'laravel-echo';
 import Pusher from 'pusher-js';
 window.Pusher = Pusher;
 
-window.startReverb = function () {
-    if (window.Echo) return window.Echo;
-
+if (document.querySelector('[data-requires-reverb]')) {
     window.Echo = new Echo({
         broadcaster: 'reverb',
         key: import.meta.env.VITE_REVERB_APP_KEY,
@@ -15,6 +13,4 @@ window.startReverb = function () {
         forceTLS: (import.meta.env.VITE_REVERB_SCHEME ?? 'https') === 'https',
         enabledTransports: ['ws', 'wss'],
     });
-
-    return window.Echo;
-};
+}