message: feat(cspr): update CSPR explorer URLs
  Changing on account and explorer URLs for CSPR
diff: @@ -204,15 +204,15 @@ class CeloTestnet extends Testnet implements EthereumNetwork {
  //TODO update explorerUrl STLX-1657
  class Casper extends Mainnet implements AccountNetwork {
  family = CoinFamily.CSPR;
  - explorerUrl = 'https://clarity.casperlabs.io/#/deploys/';
  - accountExplorerUrl = '';
  + explorerUrl = 'https://cspr.live/deploy/';
  + accountExplorerUrl = 'https://cspr.live/account/';
  }
  //TODO update explorerUrl STLX-1657
  class CasperTestnet extends Testnet implements AccountNetwork {
  family = CoinFamily.CSPR;
  - explorerUrl = 'https://clarity.casperlabs.io/#/deploys/';
  - accountExplorerUrl = '';
  + explorerUrl = 'https://testnet.cspr.live/deploy/';
  + accountExplorerUrl = 'https://testnet.cspr.live/account/';
  }
  class Ethereum extends Mainnet implements EthereumNetwork {
  