Progress bar visual fixes

- The size of the progress bar on the audio player UI keeps shifting due to the width of the surrounding timestamps not being fixed.
- It would also be better to show the timestamps as hour:minute:seconds instead of minute:seconds when over 1 hour.

<img width="901" height="55" alt="Image" src="https://github.com/user-attachments/assets/a2f8213f-544e-4ee5-b759-a7204ae4d42c" />