Introduce Captcha to Livechat Widget

RocketChat is a widely used open-source communication platform that is unfortunately susceptible to spam messages in its live chat widget. To address this issue, it is essential to implement a CAPTCHA solution in the live chat widget. The objective of this project is to integrate a customizable CAPTCHA mechanism in the live chat feature of RocketChat to prevent spam messages from being sent. The proposed solution involves offering complete customization options to the admin, allowing them to select the captcha service that best fits their needs. This will be achieved by integrating three different CAPTCHA solutions: Cloudflare captcha, Google reCAPTCHA v2, and v3. The deliverables of this project include the integration of captcha widgets using Cloudflare and Google reCAPTCHA V2 and V3 in the Rocket Chat live chat feature, customizability options for the admin to select the captcha service according to their requirements, a comprehensive testing suite to ensure that the CAPTCHA is working correctly, and a user guide to help users understand how to use the new CAPTCHA feature in the live chat widget.