Lossless m4a (ALAC) support

[ink-splatters]

What

seems m4a with ALAC (Apple Lossless) can't be played on the moment.

Symptoms

thread '<unnamed>' panicked at src/helpers/music_handler.rs:94:45: 
called `Result::unwrap()` on an `Err` value: UnrecognizedFormat

Get test ALAC file(s)

for f in *.flac ; do
    ffmpeg -nostdin -i "$f" -c:a alac -c:v copy "${f%.*}".m4a
done

Proposed fix

Maybe is it something trivial to enable or you'd need separate dependency and more like 'real' implementation of this?