feat: [Updated] Loading screen listener with percent and message (#1563)

* last update

* eslint fix

* headless fix

* Update index.d.ts

Co-authored-by: stefanfuchs <stefan1234@gmail.com>

* Update index.d.ts - Add 'LOADING_SCREEN' type to Enum

Co-authored-by: stefanfuchs <stefan1234@gmail.com>
Co-authored-by: Rajeh Taher <rajeh@reforward.dev>

example.js

@@ -7,6 +7,10 @@ const client = new Client({
 
 client.initialize();
 
+client.on('loading_screen', (percent, message) => {
+    console.log('LOADING SCREEN', percent, message);
+});
+
 client.on('qr', (qr) => {
     // NOTE: This event will not be fired if a session is specified.
     console.log('QR RECEIVED', qr);