chore: update to Rust 2024 edition

cosmic-applet-status-area/src/subscriptions/status_notifier_item.rs

@@ -1,10 +1,7 @@
 // Copyright 2023 System76 <info@system76.com>
 // SPDX-License-Identifier: GPL-3.0-only
 
-use cosmic::{
-    iced::{self, Subscription},
-    widget::icon,
-};
+use cosmic::iced::{self, Subscription};
 use futures::{FutureExt, StreamExt};
 use std::collections::HashMap;
 use zbus::zvariant::{self, OwnedValue};
@@ -255,7 +252,7 @@ pub trait DBusMenu {
     ) -> zbus::Result<(u32, Layout)>;
 
     fn event(&self, id: i32, event_id: &str, data: &OwnedValue, timestamp: u32)
-        -> zbus::Result<()>;
+    -> zbus::Result<()>;
 
     fn about_to_show(&self, id: i32) -> zbus::Result<bool>;
 

cosmic-applet-status-area/src/subscriptions/status_notifier_watcher/mod.rs

@@ -4,7 +4,7 @@
 // TODO: Both this and server proxy could emit same events, have way to generate stream from either?
 
 use cosmic::iced::{self, Subscription};
-use futures::{stream, StreamExt};
+use futures::{StreamExt, stream};
 
 use crate::subscriptions::status_notifier_item::StatusNotifierItem;
 

cosmic-applet-status-area/src/subscriptions/status_notifier_watcher/server.rs

@@ -7,11 +7,11 @@
 
 use futures::prelude::*;
 use zbus::{
+    Result,
     fdo::{DBusProxy, RequestNameFlags, RequestNameReply},
     message::Header,
     names::{BusName, UniqueName, WellKnownName},
     object_server::SignalEmitter,
-    Result,
 };
 
 const NAME: WellKnownName =
@@ -65,7 +65,7 @@ impl StatusNotifierWatcher {
 
     #[zbus(signal)]
     async fn status_notifier_item_registered(ctxt: &SignalEmitter<'_>, service: &str)
-        -> Result<()>;
+    -> Result<()>;
 
     #[zbus(signal)]
     async fn status_notifier_item_unregistered(