drupal-radix-cli feature request: Ask before creating component if it already exists

Problem/Motivation

If a user (hypothetically, me) runs drupal-radix-cli add and accidentally chooses a component that has already been created (selecting, say, nav instead of navbar), the preexisting component is overwritten without warning, potentially erasing uncommitted changes.

Proposed resolution

It would be great if instead you got a prompt "COMPONENT_NAME already exists. Do you want to overwrite it? y/N"