Copilot Desktop: Make Manage Sessions easier to discover and access #5526

Title

Make Manage Sessions easier to discover and access in Github Copilot Desktop.

Description

The Manage Sessions view is useful for seeing all sessions, including historical sessions that aren’t visible in the sidebar’s session filters. However, its entry point is buried in Settings. I had to dig through Settings to find it.

Please make this view a first-class destination in GitHub Copilot Desktop. Any of these options would make it easier to reach:

• Make the Sessions heading in the left navigation clickable and open Manage Sessions.
• Add a top-level navigation item alongside Issues, Dashboards, and Automations.
• Add a button near Settings and the profile at the bottom of the navigation pane.

Keeping the existing entry point in Settings is fine. The goal is to provide a more visible, direct way to browse and manage all sessions without opening Settings.

Expected behavior: I can open Manage Sessions directly from the main navigation and see the full session history available in that view.