feat: display song title in activity name

src/main.rs

···
     if let Some(status) = status {
         println!("{}: set initial playing status", "info".blue().bold());
         drpc.set_activity(|act| {
-            act.state(format!("{}, {}", status.track_name, status.artists()))
+            act.state(status.artists())
+                .name(status.track_name)
                 .activity_type(ActivityType::Listening)
                 .status_display(DisplayType::State)
         })?;
···
                                     Ok(Some(status)) => {
                                         println!("{}: updated playing status", "info".blue().bold());
                                         drpc.set_activity(|act| {
-                                            act.state(format!(
-                                                    "{}, {}",
-                                                    status.track_name,
-                                                    status.artists()))
+                                            act.state(status.artists())
+                                                .name(status.track_name)
                                                 .activity_type(ActivityType::Listening)
                                                 .status_display(DisplayType::State)
                                         })?;