Replace Arbitrum relayerUrl and shieldingFeeEstimatorUrl

Author: youPickItUp

src/domains/chains/utils/definitions/chains/arbitrum/arbitrum.ts

@@ -14,8 +14,8 @@ const config: ChainConfig = {
     ...arbitrum,
     shielderConfig: {
       shielderContractAddress: '0x5A0dea46A96a5b578c9cf1730f461eD0bC9C32c6',
-      relayerUrl: 'https://shielder-relayer-v2.azero.dev/arbitrum',
-      shieldingFeeEstimatorUrl: 'https://fee-estimator.azero.dev/arbitrum/get_fees',
+      relayerUrl: 'https://arbitrum-shielder-relayer-v2.blanksquare.dev',
+      shieldingFeeEstimatorUrl: 'https://arbitrum-fee-estimator-v2.blanksquare.dev/get_fees',
     },
     ChainIcon,
     NativeTokenIcon,