Show dynamic range on duplicate album import resolution

[ethanuppal]

Currently, the duplicate import info shows a few things related to audio quality (bitrate, encoding, etc.)

This album is already in the library!
Old: 269 items, AAC 266, ALAC 3, 270kbps, 736:14, 3.4 GiB
New: 400 items, FLAC, 992kbps, 48.0kHz/16 bit, 1008:03, 7.4 GiB

I think it would also be useful to see the dynamic range since that affects audio quality as well (perhaps, even more perceptibly): a lot of new releases of older albums apply copious compression. It could catch another potential error on import.

However, one could argue that this is easily checked in Audacity or by some other tool and is out of scope.