feat: more work on UI

crates/bds-ui/src/main.rs

@@ -3,6 +3,7 @@ use bds_ui::BdsApp;
 fn main() -> iced::Result {
     iced::application("bDS", BdsApp::update, BdsApp::view)
         .subscription(BdsApp::subscription)
+        .theme(|_| iced::Theme::Dark)
         .window_size((1200.0, 800.0))
         .run_with(BdsApp::new)
 }