Add struct field visualization to the editor message hierarchy tree visualization on the website (#2917)

* Fix Message Tree: Enforce Structure and Visibility

* Code review

* fix the erroreous ouputs

* error handling for MessageHandler

* Fix website visualization HTML generation

* error handling for tuple-style message enum variant

* cleanup

* Update messages

* Normalize BroadcastEvent

---------

Co-authored-by: Keavon Chambers <keavon@keavon.com>

editor/src/utility_traits.rs

@@ -60,3 +60,9 @@ pub trait HierarchicalTree {
 		""
 	}
 }
+
+pub trait ExtractField {
+	fn field_types() -> Vec<(String, usize)>;
+	fn path() -> &'static str;
+	fn print_field_types();
+}