Combine displays an error message when user disables microphone access

[jmgrady]

Describe the bug

When a user first connects to The Combine, the browser will ask for permission to use the microphone. If the user blocks this permission, The Combine displays an error message that says:

Error getting audio stream!

To Reproduce

Steps to reproduce the behavior:

1. Navigate to https://thecombine.app
2. When prompted for permission to use the microphone, select "Block"
3. Error message is displayed

Expected behavior

While technically correct, this message is not useful to a user and implies that there is a technical failure with The Combine. Instead, it should say something to the effect of "Recordings are disabled."

In addition,

1. this error message is displayed every time the user displays the launch page, and
2. the "Record" buttons are not disabled - it would be better to tell the user a priori that recording is disabled.

Environment:

• OS: [e.g. Windows/Android]
• Browser Version [e.g. Chrome 89, Firefox 90]