Update chains.json

Author: gfletcher-cll

src/config/data/chains.json

@@ -2477,8 +2477,8 @@
       }
     }
   },
-  "NEXON_HENESYS": {
-    "title": "Nexon Henesys",
+  "NEXON": {
+    "title": "Nexon",
     "icon": "/assets/chains/nexon.svg",
     "chainType": "evm",
     "chains": {