Don't dispatch update events when hovering menu items

This only affects the Schrödinger's Checkbox as far as I know, and arguably makes it more thematic, since it only changes when "observing" it.

Should it be called Schrödinger's Tick, btw? haha

Author: 1j01

MenuBar.js

@@ -522,7 +522,6 @@ function MenuBar(menus) {
 				// *Maybe* it could look at more of the overall state within `highlight`,
 				// but could it distinguish hovering an outer vs an inner item if two are highlighted?
 				item_el.addEventListener("pointerenter", () => {
-					menu_popup_el.dispatchEvent(new CustomEvent("update"), {}); // @TODO: why?
 					this.highlight(item_index);
 					send_info_event(item);
 				});