fix: remove handlers after failing to join call

src/command/join.rs

@@ -310,11 +310,8 @@ pub async fn handle(state: State, interaction: Interaction) {
         call.mute(true).await.expect("TODO");
     }
 
-    state
-        .songbird
-        .join(guild_id, voice_channel_id)
-        .await
-        .expect("TODO");
+    match state.songbird.join(guild_id, voice_channel_id).await {
+        Ok(_call) => {
             tracing::error!(?call, "successfully joined");
 
             let channel_mention = format!("<#{voice_channel_id}>");
@@ -347,4 +344,10 @@ pub async fn handle(state: State, interaction: Interaction) {
                 ]))
                 .await
                 .expect("TODO");
+        },
+        Err(join_error) => {
+            tracing::error!(?join_error);
+            let _ = state.songbird.remove(guild_id).await;
+        }
+    }
 }