enable svelte build

src/main.rs

@@ -10,6 +10,8 @@ extern crate rocket;
 #[cfg(feature = "rowing-tera")]
 #[launch]
 async fn rocket() -> _ {
+    use sqlx::SqlitePool;
+
     env_logger::init();
 
     let mut connection_options = SqliteConnectOptions::from_str("sqlite://db.sqlite").unwrap();