fix(console): support `default` parameter on textbox component

[innocenzi]

This pull request adds support for the default parameter of Console#ask, which wasn't passed down nor taken into account in TextBoxComponent.

Note: my approach was the easiest I could think of—reusing the existing methods instead of adding a new cursor manipulation, at the cost of introducing a loop, which I believe is fast enough to not care about it.

[brendt]

Yeah, looks good