fix(music): showing when no mpris player found

THe music module expects an event to be sent on subscription to the
client to set up the initial state. This ensures an event is sent when
in MPRIS mode when no player is initially found.

src/clients/music/mpris.rs

@@ -231,6 +231,16 @@ impl MusicClient for Client {
             if let Err(err) = Self::send_update(&player, &self.tx) {
                 error!("{err:?}");
             }
+        } else {
+            let status = Status {
+                playlist_position: 0,
+                playlist_length: 0,
+                state: PlayerState::Stopped,
+                elapsed: None,
+                duration: None,
+                volume_percent: 0,
+            };
+            send!(self.tx, PlayerUpdate::Update(Box::new(None), status));
         }
 
         rx