Provide a code snippet for the console CRD to customize roles in Project access page

Description

As an administrator, I want to customize the roles which are being shown in the Project Access tab in the Developer console. This includes removing default roles as well as adding custom roles.

Based on the ODC-5394 enhancement proposal its required to extend the console configuration CRD, enable admins to configure this data in the console resource and provide these data as SERVER_FLAGS in the console bridge.

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

Acceptance Criteria

1. When a admin opens the Console CRD there is a snippet in the sidebar which provides a default YAML which supports the admin with customization the Roles. This example should include the default roles.

Additional Details:

1. See also the customize catalog categories PR: https://github.com/openshift/console/pull/7297