Linux: Full-screen capture fails with 'Selected display is not available for browser capture on this system'

[uriva]

On Linux, full-screen recording intermittently fails with this error dialog:

Failed to start recording: Selected display is not available for browser capture on this system.

What seems to be happening

The app appears to rely on a previously selected monitor/source ID for browser capture. On Linux (especially Wayland), display/source IDs can change between launches or display/session changes, so the stored source can become stale and unavailable.

Repro (common)

1. Launch Recordly
2. Select full-screen source
3. Restart app, suspend/resume, or change display layout
4. Try full-screen recording again
5. Error appears and recording does not start

Expected

If stored source is stale/unavailable, app should gracefully re-resolve source or fall back to picker-based getDisplayMedia flow and continue.

Actual

Recording fails hard with error dialog and no fallback.

Notes

Window capture may still work while full-screen fails.

Thanks!