Bash / console prompts

[lwasser]

To avoid users copying the prompt character in a bash / console

we likely want to default to console if we have output
The default console symbols is $

$ ls

More docs on this is here
https://sphinx-copybutton.readthedocs.io/en/latest/use.html#strip-and-configure-input-prompts-for-code-cells

I think i (leah) likely uses bash code cells and not using the correct prompt char that sphinx copy button expect.