The downloads pods deploy on worker nodes by the console operators. But some users don't like that, so please improve it so that it can be set to master fixed.

Console operator should have option to configure the NodeSelector for the console's deployments.

Created based on https://bugzilla.redhat.com/show_bug.cgi?id=1975605

Acceptance Criteria

• The node selector for console pods can be configured in the console operator config
• The node selector for downloads pods can be configured in the console operator config
• We have console-operator integration tests covering this functionality