Description

Default values in cortex configure -e <env> prompts have the following precedence:

Currently:

1. Previous keys used in if it exists
2. Blank

Suggested order:

1. Previous keys used in if they exist
2. Keys from the default environment if they exist
3. Blank

Motivation

Prevent users from copying the same key multiple times if they have multiple operator endpoints but they are all deployed using the same key.