Snippet format update

To match the starter (for the migration)

snippets/triggerEvent.md

@@ -1,4 +1,7 @@
-### triggerEvent
+---
+title: triggerEvent
+tags: browser,event,intermediate
+---
 
 Triggers a specific event on a given element, optionally passing custom data.
 
@@ -14,4 +17,4 @@ const triggerEvent = (el, eventType, detail) =>
 ```js
 triggerEvent(document.getElementById('myId'), 'click');
 triggerEvent(document.getElementById('myId'), 'click', { username: 'bob' });
-```
+```