blockUrl method
result example: https://explorer.cardano.org/en/block?id=67f5e3c6094c7c3e5a3ec82d75b6cb0e5009f9bb3b7f8bd9eab6cd248b2f5f54
Implementation
String blockUrl({required String blockIdHex32}) =>
"$baseUrl/$lang/block?id=$blockIdHex32";