Set last POW Block to 165_500 (#249)

Author: dangershony

src/Networks/Blockcore.Networks.Xds/XdsMain.cs

@@ -119,7 +119,7 @@ public XdsMain()
                 powLimit: new Target(new uint256("00000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")),
                 minimumChainWork: null,
                 isProofOfStake: true,
-                lastPowBlock: 1_000_000_000,
+                lastPowBlock: 165_500,
                 proofOfStakeLimit: new BigInteger(uint256.Parse("00000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").ToBytes(false)),
                 proofOfStakeLimitV2: new BigInteger(uint256.Parse("000000000000ffffffffffffffffffffffffffffffffffffffffffffffffffff").ToBytes(false)),
                 proofOfStakeReward: Money.Coins(50),