When I'm using the secondary sidebar with only a single view (like Chat), the view container tabs still take up valuable vertical space even though there's nothing to switch between.

Proposal:
When there's only one view container in the secondary sidebar, hide the view container tabs entirely since they serve no purpose.

Benefits:

• Maximizes available space for the actual content
• Reduces visual clutter when tabs aren't needed
• Better use of screen real estate, especially for chat interactions

This should help make better use of the available space when the secondary sidebar contains a single view.