refac

lib/models/queries_indexer.dart

lib/providers/substrate_sdk.dart

lib/screens/wallet_view.dart

lib/widgets/certifications.dart

lib/widgets/certify/cert_state.dart

lib/widgets/certify/certify_button.dart

lib/widgets/certify/wait_to_cert.dart

lib/widgets/certs_list.dart

lib/widgets/commons/common_elements.dart

pubspec.yaml