refactor: use settings subscriptions and nm secret agent

cosmic-applet-network/src/utils.rs

@@ -0,0 +1,18 @@
+use futures_util::future::select;
+
+/// Spawn a background tasks and forward its messages
+pub fn forward_event_loop<M: 'static + Send, T: Future<Output = ()> + Send + 'static>(
+    event_loop: impl FnOnce(async_fn_stream::StreamEmitter<M>) -> T + Send + 'static,
+) -> (tokio::sync::oneshot::Sender<()>, cosmic::Task<M>) {
+    let (cancel_tx, cancel_rx) = tokio::sync::oneshot::channel::<()>();
+
+    let task = cosmic::Task::stream(async_fn_stream::fn_stream(|emitter| async move {
+        select(
+            std::pin::pin!(cancel_rx),
+            std::pin::pin!(event_loop(emitter)),
+        )
+        .await;
+    }));
+
+    (cancel_tx, task)
+}