add "duration" field to audio cells
As it was done with width/height for image cells: https://github.com/huggingface/dataset-viewer/pull/600

It will help to show additional information in the dataset viewer, in particular: highlighting a row will select the appropriate bar in the durations histogram.
add "duration" field to audio cells: As it was done with width/height for image cells: https://github.com/huggingface/dataset-viewer/pull/600

It will help to show additional information in the dataset viewer, in particular: highlighting a row will select the appropriate bar in the durations histogram.