Schemas available for upload don't reflect the database configuration

[michael-s-molina]

Bug description

When creating a database configuration, there's an Security option to allow file uploads where you need to define which schemas are allowed.

The problem is that the upload modal is not considering the allowed schemas and it's showing all schemas available.

Another important thing is make the Schema input required if only certain schemas are allowed.

Screenshots/recordings

No response

Superset version

master / latest-dev

Python version

3.9

Node version

16

Browser

Chrome

Additional context

No response

Checklist

• I have searched Superset docs and Slack and didn't find a solution to my problem.
• I have searched the GitHub issue tracker and didn't find a similar bug report.
• I have checked Superset's logs for errors and if I found a relevant Python stacktrace, I included it here as text in the "additional context" section.