v1.7.2

AetherShell v1.7.2

Completes the cross-compilation fix begun in v1.7.1.

v1.7.1 removed openssl-sys; the musl and aarch64 release builds then failed on
alsa-sys instead. That came from rodio, which was declared as a dependency and
pulled into the `native` feature but never imported anywhere — the only
references in the source tree were two comments saying "would use rodio".

Removing it drops rodio, cpal, alsa, alsa-sys and symphonia. No functionality
is lost, because there was none: AudioPlayer::play() printed a message and
returned Ok(()) without playing anything. It now returns an explicit
"not implemented" error instead of feigning success.