Suggest user to create a database when db list is empty

[athoscouto]

turso db list is not really useful when there are no DBs to be listed.

$ turso db list
NAME     LOCATIONS     URL 

What about telling users to create a database?

$ turso db list
You don't have any databases. You can create a new one with turso db create.

Or some nicer message.

[CodingDoug]

Some downsides:

• This will cause problems with scripts that try to parse the output of the command (which is something I've done).
• The ecosystem generally understands what empty tabular output means. For example, a select on an empty table wouldn't try give a special message to create some rows.
• I think we already notify people in other places earlier in the process when they don't have a database, like when they log in? I don't think we want to harass people too much, otherwise it might start to feel like an error not to have a database.

[haaawk]

So should we close this issue @athoscouto and @CodingDoug ?

[CodingDoug]

I'm fine to close this since we already suggest to the user to create a database when they log in without one.