Sync list of tables

Currently the list of tables for a given profile is static until the user goes to refresh the connection. Additionally we only keep the list of tables a user has scanned/queried.

This has a few issues:

1. The tables could go stale. If a table has been deleted, we don’t clean it up, we leave it in the ui today.

2. New tables require going through the table discovery process again.

We need to automagically refresh the list of tables for connected profiles&regions whenever the app is connected.

That way we can discover new tables, and discard old ones.