Clarify the usage of `Ctrl+G` shortcut

### Describe the feature or problem you'd like to solve

`Ctrl+G` has two distinct functionalities: edit the prompt with `$EDITOR`; or skip the question, even when focused on the input field of choice

### Proposed solution

Make them separate shortcuts, so one would not mistakenly skip the question when he wants to edit the input field with vim.

### Example prompts or workflows

_No response_

### Additional context

_No response_

The issue does not name a file or test. Start by reproducing both current Ctrl+G behaviors in a CLI input prompt, then locate the keyboard handling and $EDITOR workflow. Done means the two actions use distinct shortcuts and neither workflow accidentally triggers the other.

Rédigé par le modèle d'indexation à partir du texte de l'issue.