passing tests now

examples/focus_example.rs

@@ -1,6 +1,6 @@
 extern crate alloc;
 
-use tui_orchestrator::focus::{FocusManager, Focusable};
+use tui_orchestrator::focus::{FocusId, FocusManager, Focusable};
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 enum FormElement {
@@ -11,6 +11,8 @@ enum FormElement {
     Cancel,
 }
 
+impl FocusId for FormElement {}
+
 #[allow(dead_code)]
 struct LoginForm {
     username: String,