Make command line options compatible with podman

[cgwalters]

See https://gitlab.com/bootc-org/podman-bootc-cli/-/issues/32

It was requested by the podman team, to change our command flag to be coherent with podman, for instance:
remove --background making it the default, and add -i for an interactive mode.

[germag]

I'm partially addressing this in #11

Ben Breard wrote:

one option that would be really nice here is -l (latest). This makes it super fast so you don't have to run the list command to get the ID. I think it would mainly apply to stop, ssh, & rm. Just a thought that would align to a lot of the podman command options.