Force package reloads per default

NSO in Docker is unsupervised so the kind of warnings that a package reload would emit and that requires the command to be rerun with the force argument makes little sense. It is better to simply force the package reload in the first place.

The structured development and operations approach with NSO in Docker involves testing in CI and operational practices, like backups, to catch and avoid accidental destructive model changes.

Closes #51 (closed)