Provide a code snippet for the console CRD

Description

As a cluster-admin, I should be able to see a code snippet that shows how to enable sub-catalogs or the entire dev catalog.

Based on the https://issues.redhat.com/browse/ODC-6732 enhancement proposal, the cluster admin can add sub-catalog(s)  from the Developer Catalog or the Dev catalog as a whole.

To support the cluster-admin to configure the sub-catalog list correctly, the developer console should provide a code snippet for the customization yaml resource (Console CRD).

Acceptance Criteria

1. When the admin opens the Console CRD there is a snippet in the sidebar which provides a default YAML, which supports the admin to add sub-catalogs/the whole dev catalog

Additional Details:

Previous work:

1. https://issues.redhat.com/browse/ODC-5080
2. https://issues.redhat.com/browse/ODC-5449