AeternalService: fix case-sensitive comparison of domains

[marc0olo]

currently we are comparing the domain case-sensitive and should replace equals with equalsIgnoreCase:

@Override
public boolean blockingIsAuctionActive(String name) {
    ActiveAuctionsResult result = this.blockingGetNameAuctionsActive();
    return result.getActiveAuctionResults().stream()
        .filter(auction -> auction.getName().equals(name))
        .findAny()
        .isPresent();
  }