Toggle schemas and tables. FE, BE, the whole package.

[anthony2261]

Initial Notes:

• what do we want the behavior to be when the DSN changes during a connection update? I say we enable everything we find in the new dsn, it could be a different database!
• With this change, the schema will always be shown, even for databases with one schema. For example, sqlite dbs can only have one schema named "main", and it will show up in the generated SQL, for example: SELECT * from main.purchases.
• Tested this with sqlite, postgres, sql server and mysql

compressed.mp4