Is your feature request related to a problem? Please describe.
There is no command for ringing the terminal bell, at least not from what I can find.

Describe the solution you'd like
I would like to see a queue-able and executable command added that rings the terminal bell.

Describe alternatives you've considered in any
I could ring the terminal bell manually by printing the relevant escape code, but isn't that what crossterm tries to avoid?

Additional context
https://en.wikipedia.org/wiki/Bell_character