Display virtual registry ID in the UI

🔥 Problem

Currently, the Virtual Registry ID is only visible in the URL. Users often need this ID for configuration tasks, such as updating their settings.xml file with registry URLs and repository IDs. Since the ID is not surfaced in the UI, users must infer it from the URL or the breadcrumb, which is not always obvious and may adds friction (see &15090 (comment 2733618642)).

💡 Proposal

Project IDs and Group IDs are exposed in the UI through the ellipsis menu on the respective homepages, making them easier to find and copy. We can follow the same patterns for the Virtual Registry ID.

• Surface the Virtual Registry ID in the UI, similar to how we handle Project/Group IDs (see attached screenshot for reference).
• Add a Copy Virtual Registry ID: <ID> option to the Virtual Registry’s ellipsis menu on the registry detail page.