feat(command): ✨ add TextBox prompt type

[JOTSR]

Summary

Add multiline prompt type (TextBox).

Motivation

Allow direct multiline prompt in terminal (without editing features).

Changes

• Add prompt/textbox.ts.

Todo

• Support erase and text navigation.
• Fix stdin issue (fast closed after first prompt')
• Implement fully (all methods).
• Add tests.
• Add doc.

Maybe choose a better name: "textbox", "textblock", "textarea", ...

[JOTSR]

@c4spar Before continuing to work on this feature (tests, improve code, and docs), does this feat right for you ?

[JOTSR]

Demo

Default options

Custom endDelimiter

[c4spar]

Sounds good to me 👍 TextBox and TextArea are fine for me. Another name could be MultilineInput.