Merge pull request lockfale#394 from szh326/add-ddg-ai

Update arf.json, add'DuckDuckGo AI Chat'

Author: Giddlers

public/arf.json

@@ -5763,6 +5763,11 @@
       "type": "url",
       "url": "https://chatgpt.com/"
     },
+    {
+      "name": "DuckDuckGo AI Chat",
+      "type": "url",
+      "url": "https://duckduckgo.com/aichat"
+    },
     {
       "name": "WormGPT-6 (R)",
       "type": "url",