add changelog entry to new global search (#2748)

* add changelog entry to new global search

* update unordered list

Author: gfletcher-cll

public/changelog.json

@@ -298,6 +298,13 @@
     }
   },
   "data": [
+    {
+      "category": "release",
+      "date": "2025-06-17",
+      "title": "Chainlink Universal Search + AI",
+      "topic": "General",
+      "description": "We’ve launched Chainlink Universal Search — an AI-powered experience that helps developers instantly find what they need across all Chainlink web properties.\n\n**What You Can Search:**\n- Data Feeds & Streams\n- CCIP Networks, Lanes & Tokens\n- LINK Token Contracts\n- Faucets\n- Resources:\n  - Technical Documentation\n  - Quickstarts\n  - Tutorials\n  - Tech Talks\n  - Blogs\n  - Videos\n  - Case Studies\n- Changelog\n\n**Features:**\n- **Ask or Search:** Use natural language or keyword input\n- **Smart Previews:** Hover to copy key values or open block explorers\n- **Direct Links:** Jump to faucets, changelogs, and integration guides instantly\n\n**Access It Anywhere:**\n- Available across *.chain.link\n- Launch with `Cmd+K` or tap the **Ask AI** button\n\nUniversal Search puts all Chainlink resources at your fingertips—fast, focused, and built for devs."
+    },
     {
       "category": "integration",
       "date": "2025-06-17",