How to Set a Default Room Name in the Twilio Video React App

By default, the Twilio Video React App displays two input fields: one for your name and one for the name of the video room you'd like to join. To prepopulate a video room name so that participants don't have to type it in, you can change the default name via URL parameters or hardcode a value in the application's code. The application uses React Hooks to enable routing and display different pages to the user. By modifying certain components' state variables, such as `roomName` in the `PreJoinScreens` component, you can set the initial room name for video rooms when users navigate to the app. You can also disable the input field for the room name by adding a `disabled` attribute to the `TextField` component.