feat: fixing mainnet rpc

Author: JadenDurnford

utils/chains.ts

@@ -57,7 +57,40 @@ const usdcCurrencyBase = {
 }
 
 export const DefaultChain: ReservoirChain = {
-  ...mainnet,
+  id: 1,
+  name: 'Ethereum',
+  nativeCurrency: { name: 'Ether', symbol: 'ETH', decimals: 18 },
+  rpcUrls: {
+    default: {
+      http: [
+        'https://ethereum-rpc.publicnode.com',
+        'https://mainnet.gateway.tenderly.co',
+        'https://rpc.flashbots.net',
+        'https://rpc.mevblocker.io',
+        'https://eth.drpc.org',
+      ],
+    },
+  },
+  blockExplorers: {
+    default: {
+      name: 'Etherscan',
+      url: 'https://etherscan.io',
+      apiUrl: 'https://api.etherscan.io/api',
+    },
+  },
+  contracts: {
+    ensRegistry: {
+      address: '0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e',
+    },
+    ensUniversalResolver: {
+      address: '0xce01f8eee7E479C928F8919abD53E553a36CeF67',
+      blockCreated: 19_258_213,
+    },
+    multicall3: {
+      address: '0xca11bde05977b3631167028862be2a173976ca11',
+      blockCreated: 14_353_601,
+    },
+  },
   // Any url to display the logo of the chain in light mode
   lightIconUrl: '/icons/eth-icon-dark.svg',
   // Any url to display the logo of the chain in dark mode