feat: logout client

close #255

src/Client.js

@@ -359,6 +359,15 @@ class Client extends EventEmitter {
         await this.pupBrowser.close();
     }
 
+    /**
+     * Logs out the client, closing the current session
+     */
+    async logout() {
+        return await this.pupPage.evaluate(() => {
+            return window.Store.AppState.logout();
+        });
+    }
+
     /**
      * Returns the version of WhatsApp Web currently being run
      * @returns Promise<string>