Don't hold lock on notifyChanged

src/audio/track_queue.cpp

@@ -318,11 +318,13 @@ auto TrackQueue::repeat() const -> bool {
 }
 
 auto TrackQueue::replay(bool en) -> void {
+  {
     const std::unique_lock<std::shared_mutex> lock(mutex_);
     replay_ = en;
     if (shuffle_) {
       shuffle_->replay(en);
     }
+  }
   notifyChanged(false);
 }