don't crash on add track/scene

src/core.rs

@@ -148,17 +148,12 @@ pub fn input_thread (
         // Listen for events and send them to the main thread
         if ::crossterm::event::poll(poll).is_ok() {
             let event = ::crossterm::event::read().unwrap();
-            match event {
-                Event::Key(KeyEvent {
-                    code:      KeyCode::Char('c'),
-                    modifiers: KeyModifiers::CONTROL,
-                    ..
-                }) => {
-                    exited.store(true, Ordering::Relaxed);
-                },
-                _ => if device.write().unwrap().handle(&AppEvent::Input(event)).is_err() {
-                    break
-                }
+            if let Event::Key(KeyEvent {
+                code: KeyCode::Char('c'), modifiers: KeyModifiers::CONTROL, ..
+            }) = event {
+                exited.store(true, Ordering::Relaxed);
+            } else if let Err(e) = device.write().unwrap().handle(&AppEvent::Input(event)) {
+                panic!("{e}")
             }
         }
     })