Update erc20 with pharos-testnet

Author: Kwonhyukjoon

chain/pharos-testnet/erc20_2.json

@@ -7,7 +7,8 @@
         "description": "Wrapped PHRS",
         "decimals": 18,
         "image": "https://raw.githubusercontent.com/cosmostation/chainlist/master/chain/pharos-testnet/asset/wphrs.png",
-        "coinGeckoId": ""
+        "coinGeckoId": "",
+        "wallet_preload": true
     },
     {
         "type": "erc20",
@@ -29,7 +30,7 @@
         "decimals": 6,
         "image": "",
         "coinGeckoId": "https://raw.githubusercontent.com/cosmostation/chainlist/master/chain/pharos-testnet/asset/usdt.png",
-        "wallet_preload": false
+        "wallet_preload": true
     },
     {
         "type": "erc20",