Fix: Move WS error handling (#174)

Moves all WS handling of unexpected payloads into the stream to prevent code duplication.

This also prevents non-{Hello,Resumed,Ready} messages from causing a handshake failure, as it seems Discord do not prevent such messages from appearing.

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Co-authored-by: Kyle Simpson <kyleandrew.simpson@gmail.com>

src/driver/mod.rs

@@ -30,8 +30,6 @@ pub use mix_mode::MixMode;
 #[cfg(test)]
 pub use test_config::*;
 
-#[cfg(feature = "builtin-queue")]
-use crate::tracks;
 #[cfg(feature = "builtin-queue")]
 use crate::tracks::TrackQueue;
 use crate::{