Fix database printing to show all of an app's databases

[kate-goldenring]

Before fix:

$ spin cloud sqlite list
+------+-------+----------+
| App  | Label | Database |
+=========================+
| todo | hello | mydb     |
+------+-------+----------+

After fix

$ spin cloud sqlite list
+------+---------+--------------------+
| App  | Label   | Database           |
+=====================================+
| todo | default | brilliant-kangaroo |
|------+---------+--------------------|
| todo | hello   | mydb               |
+------+---------+--------------------+

[kate-goldenring]

Realized the key should take into account label name too since an app could theoretically point to the same db through a different label. Will update

[itowlson]

What would be the impact of removing the row of dashes between lines? It adds a lot of vertical space, but I can see the value for readability if we anticipate app names being highly variable in length. Or if we dashed only between apps rather than between every line?

[kate-goldenring]

@itowlson I'd be happy with removing the dashes between rows. I also am looking to add json outputting too which i expect would be used for larger blocks of output