Summary

When a session already has a transcript, the overflow menu (three-dot menu) now shows "Resume listening" instead of "Start listening". This makes the menu item label consistent with the header bar's "Resume listening" button that already appears when a transcript exists.

The existing hasTranscript value from OverflowButton is passed down to the Listening component to drive the label change. No new data fetching or state logic was added.

Review & Testing Checklist for Human

• Open a session that has an existing transcript, open the overflow menu, and verify it says "Resume listening"
• Open a session with no transcript, open the overflow menu, and verify it still says "Start listening"
• Verify clicking "Resume listening" in the menu still correctly starts listening

Notes

• Requested by @ComputelessComputer
• Devin session