fix: logging and use dbus config subscription in audio applet

cosmic-applet-notifications/src/main.rs

@@ -32,6 +32,7 @@ use tracing::info;
 #[tokio::main(flavor = "current_thread")]
 pub async fn main() -> cosmic::iced::Result {
     tracing_subscriber::fmt::init();
+    let _ = tracing_log::LogTracer::init();
     // Prepare i18n
     localize::localize();