Problem Description:

• The “Content count” at https://console.redhat.com/ansible/automation-hub/repositories displays the number of CollectionVersions in the repo associated with the synclist distro URL
• In the past this also reflected number of content that get sync’d to PAH
• Today since excluded content lives in v3/excludes, and the synclist distro URL always points to the `published` repo, this no longer reflects number of content that get sync’d to PAH

Proposed Solution:

• Have this count be `published` Collection count minus synclist v3/excludes count
  • In the past we showed a count of CollectionVersions, but since the sync toggle is done at the Collection level (i.e. of 100 collections in `published`, the org admin excludes 5), we want to show Collection count (i.e. 95).
• Rename "Content count" to "Collection count"