remove modules and have single event manager (atomics feature parity + preparation for local state)

src/bin/test/main.rs

@@ -125,7 +125,8 @@ impl DefaultAppState for Client {
                     add_text.h.width(rest(1)),
                     Rect::new(Color::GREEN)
                         .on(CursorSense::click(), move |ctx| {
-                            ctx.ui.run_event(ctx.state, add_text.r, Submit, ());
+                            ctx.ui
+                                .run_event::<Submit, _>(ctx.state, add_text.r, &mut ());
                         })
                         .sized((40, 40)),
                 )