chore: add bots index instance

Author: adbenitez

frontend/data.json

@@ -120,6 +120,12 @@
       "admin": "merlinux",
       "url": "https://i.delta.chat/#D3D403A734BE71FE9293A00311FEF80DBE5DBC89&a=juegos%40buzon.uy&n=&i=WQZY-8FODS3&s=ZQBkaclFzao"
     },
+    {
+      "description": "Public bots index/directory 🔍",
+      "lang": "en",
+      "admin": "merlinux",
+      "url": "https://i.delta.chat/#67889B0362BEDBFEE05ACD92C1D737FA632A9582&a=botsindex%40arcanechat.me&n=Public%20Bots&i=336MTEz38EH-RJxM9OKWygYK&s=TpVVGK6C4KrJmRG0bwHLalXt"
+    },
     {
       "description": "Public bots index/directory 🔍",
       "lang": "en",