Make outputs of CLI examples nice.

[evanlinjin]

The CLI output is a bit messy and this makes it difficult to read.

I suggest putting everything into tables and to reduce the amount of data in the list commands and to add additional commands to see more details about a particular item.

We can use a dependency such as https://docs.rs/tabled/latest/tabled/ to achieve this.

[notmandatory]

This is a good idea, but users should also keep the option to get the outputs as JSON as they are now to make it easier to parse the outputs with something like jq, which we use in some of the tutorials.

[evanlinjin]

This is a good idea, but users should also keep the option to get the outputs as JSON as they are now to make it easier to parse the outputs with something like jq, which we use in some of the tutorials.

That's a good point. Originally, the outputs were just from println! and not proper JSON so #909 is objectively better. However, I think having the option for different output formats is the way to go.