Prevent disabled device menus from opening

[shomix]

• Disabled camera and microphone controls can no longer open device selection menus.
• This prevents the transparent dropdown from appearing when capture is turned off.

[github-actions]

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[builder-io-integration]

Builder reviewed your changes — looks good ✅

Review Details

Incremental Code Review Summary

The updated PR refactors MediaDeviceRow so device selection and system-audio settings use separate controls. When camera or microphone capture is off, the device label button is disabled and the device list is omitted; when the microphone is off, a dedicated menu trigger remains available for the independent “Record System audio” switch. The new wrapper positioning also keeps the popover anchored to the complete row.

The previous review’s system-audio accessibility concern is addressed by this separation. Two parallel relaxed reviews found no new confirmed bugs across disabled-state behavior, menu state transitions, device selection/refresh, ARIA attributes, or CSS positioning. This remains a low-risk frontend change.

✅ Good fix: the microphone-off path now exposes only the applicable system-audio setting rather than reopening device selection.
✅ Existing close-on-toggle-off behavior is preserved.

🧪 Browser testing: Attempted full verification after the update, but all 10 grounded test cases were blocked because browser automation tools were unavailable to executor agents. The dev server was healthy; no visual evidence was collected.