Change chain name (#6637)

* Add eGoldChain networks (testnet/mainnet)

* Refactor eGoldChain RPC formatting in eip155-11451.json

* Update RPC URLs for eGoldChain and testnet configurations in JSON files

* Fix RPC URL formatting for eGoldChain in eip155-11451.json

* Update Websocket endpoint eGoldChain mainnet & testnet

* change name

---------

Co-authored-by: jiw.kittipong <jiw.kittipong@devdogdog.com>

Author: sensugaz

_data/chains/eip155-111451.json

@@ -1,5 +1,5 @@
 {
-  "name": "eGoldChain Testnet",
+  "name": "eGold Chain Testnet",
   "chain": "EGC",
   "icon": "egoldchain",
   "rpc": [
@@ -18,7 +18,7 @@
   "networkId": 111451,
   "explorers": [
     {
-      "name": "eGoldChain Block Explorer",
+      "name": "eGold Chain Block Explorer",
       "url": "http://testnet.egoldscan.io",
       "standard": "none",
       "icon": "egoldchain"

_data/chains/eip155-11451.json

@@ -1,5 +1,5 @@
 {
-  "name": "eGoldChain",
+  "name": "eGold Chain",
   "chain": "EGC",
   "icon": "egoldchain",
   "rpc": ["https://rpc.egoldchain.com", "wss://rpc.egoldchain.com"],
@@ -15,7 +15,7 @@
   "networkId": 11451,
   "explorers": [
     {
-      "name": "eGoldChain Block Explorer",
+      "name": "eGold Chain Block Explorer",
       "url": "https://egoldscan.io",
       "standard": "none",
       "icon": "egoldchain"