feat: check if the leave command was invoked by the bot owner before leaving

src/main.rs

@@ -201,6 +201,7 @@ async fn main() -> Result<(), MainError> {
     let state = State {
         cancellation_token: cancellation_token.clone(),
         discord_application_id,
+        discord_bot_owner_user_id: bot_owner,
         discord_client,
         discord_user_id,
         songbird,