fix: update Score trait implementation and TUI initialization

Update the `Score` trait implementations to return a `Box<dyn Interpret>` instead of concrete types or clones where necessary. Additionally, refactor the initialization and cleanup in `HarmonyTUI` to use utility functions provided by `ratatui`.

harmony-rs/demo/vbox-opnsense/src/main.rs

@@ -92,5 +92,5 @@ async fn main() {
     // maestro.interpret(dhcp_score).await.unwrap();
     // maestro.interpret(load_balancer_score).await.unwrap();
     // maestro.interpret(tftp_score).await.unwrap();
-    maestro.interpret(http_score).await.unwrap();
+    maestro.interpret(&http_score).await.unwrap();
 }