Auto-record calls when the instructor joins the class

Here's a 1-paragraph summary of the text: In this part three of the fitness use case series, the focus is on adding automated features to the Daily fitness demo app, specifically automatic recording when the instructor joins the class. This involves setting up meeting token properties and updating recording settings to record only the instructor's video and audio, improving the experience for both instructors and attendees. The tutorial covers how to achieve this using daily-js, including creating a new meeting token with specific properties, updating the code snippet to enable cloud recording on join, and modifying the RecordingProvider component to use a single-participant cloud layout, resulting in a more private and user-friendly recording process.