Ask on startup to resume/reuse "old" config as seed for menu #4035
Description
describe the request
It might be a good idea if the menu system detects /var/log/archinstall/user_configuration.json, and asks if the user wants to continue/reuse that configuration or start over.
For instance in a crash where the user made a mistake somewhere, they wouldn't need to re-do everything.
It's a small thing, but perhaps that would make more use of the automatically created user config.