`turso db shell` woes because of mismatch between database name and URL

If I create a database with the name hello, the URL starts with hello-penberg making the following error likely:

$ turso db shell hello-penberg 
Error: database hello-penberg not found. List known databases using turso db list

Let's either (1) add an alias for hello-penberg to hello (but tell the user that we're using the alias) or (2) at minimum improve the error message to use word distance algorithm to suggest the most likely name.

Reported by Jan Piotrowski.