feat: Simplification of UI and icons creation

public/js/main.js

@@ -166,9 +166,6 @@ function announce(notice) {
     case 'contract_failed':
       showToast(t('toast.contractFailed'), { error: true });
       break;
-    case 'event_opportunity':
-      showToast(t('toast.eventOpportunity', { title: t(`event.${notice.type}.title`) }));
-      break;
     case 'event_incident':
       showToast(t('toast.eventIncident', { title: t(`event.${notice.type}.title`) }), { error: true });
       break;
@@ -221,9 +218,11 @@ function render() {
 
 // ------------------------------------------------------------------- actions
 
+/** Wrap an engine action: run it on the current state, refresh the screen, report if it happened. */
 const act = (fn) => (...args) => {
-  fn(state, ctx, ...args);
+  const done = fn(state, ctx, ...args);
   render();
+  return done;
 };
 
 const view = createView({