chore: add banners (#7685)

* chore: add banners

* Update apps/site/site.json

Co-authored-by: Matt Cowley <me@mattcowley.co.uk>
Signed-off-by: Claudio W. <cwunder@gnome.org>

---------

Signed-off-by: Claudio W. <cwunder@gnome.org>
Co-authored-by: Matt Cowley <me@mattcowley.co.uk>

Author: ovflowd

apps/site/site.json

@@ -28,21 +28,21 @@
   ],
   "websiteBanners": {
     "index": {
-      "startDate": "2025-03-17T00:00:00.000Z",
-      "endDate": "2025-04-17T00:00:00.000Z",
-      "text": "Node.js launches an official Discord community",
-      "link": "https://nodejs.org/en/blog/announcements/official-discord-launch-announcement",
-      "type": "default"
+      "startDate": "2025-04-01T00:00:00.000Z",
+      "endDate": "2025-06-01T00:00:00.000Z",
+      "text": "Node.js v18 is reaching End-Of-Life on April 30, 2025.",
+      "link": "https://nodejs.org/en/about/previous-releases#release-schedule",
+      "type": "warning"
     }
   },
   "websiteBadges": {
     "index": {
-      "startDate": "2024-11-01T00:00:00.000Z",
-      "endDate": "2024-12-31T00:00:00.000Z",
+      "startDate": "2025-04-01T00:00:00.000Z",
+      "endDate": "2025-07-01T00:00:00.000Z",
       "kind": "default",
-      "title": "Read",
-      "text": "Node.js Collab Summit Report",
-      "link": "https://nodejs.org/en/blog/events/collab-summit-2024-dublin"
+      "title": "JSConf",
+      "text": "General Admission Tickets are on sale now!",
+      "link": "https://events.linuxfoundation.org/jsconf-north-america"
     }
   }
 }