Always expand inst.Message field in store.Inspect

[jandubois]

There is no reason to let the user deal with template expansion when we can do this automatically after loading. This is especially useful in limactl list output:

$ limactl ls -f '{{.Message}}' docker
To run `docker` on the host (assumes docker-cli is installed), run the following commands:
------
docker context create lima --docker "host=unix:///Users/jan/.lima/docker/sock/docker.sock"
docker context use lima
docker run hello-world
------

See also #838 (comment)

[AkihiroSuda]

Thanks