include timestamp in audio title

src/main.rs

@@ -152,7 +152,7 @@ async fn post_random_capture<R: Rng>(
             String::from("audio/mpeg"),
             eggbug::MediaMetadata::Audio {
                 artist: show.title.clone(),
-                title: descriptor.clone(),
+                title: format!("{} @{}", descriptor, formatted_timestamp),
             },
         );