[#632] Show error message for failed transaction (#642)

Closes #632

secant/Features/WalletEventsFlow/Views/TransactionDetailView.swift

@@ -41,8 +41,12 @@ struct TransactionDetailView: View {
                         case .failed:
                             Text(L10n.Transaction.youDidNotSent(transaction.zecAmount.decimalString(), TargetConstants.tokenName))
                                 .padding()
+
                             address(mark: .inactive, viewStore: viewStore)
                             memo(transaction, viewStore, mark: .highlight)
+
+                            Text(L10n.TransactionDetail.error(transaction.errorMessage ?? L10n.General.unknown))
+                                .padding()
                         }
                     }
                     

secant/Resources/Generated/L10n.swift

@@ -586,6 +586,10 @@ internal enum L10n {
     }
   }
   internal enum TransactionDetail {
+    /// Error: %@
+    internal static func error(_ p1: Any) -> String {
+      return L10n.tr("Localizable", "transactionDetail.error", String(describing: p1), fallback: "Error: %@")
+    }
     /// Transaction detail
     internal static let title = L10n.tr("Localizable", "transactionDetail.title", fallback: "Transaction detail")
   }

secant/Resources/Localizable.strings

@@ -144,6 +144,7 @@
 "transaction.to" = "to";
 "transaction.unconfirmed" = "unconfirmed";
 "transactionDetail.title" = "Transaction detail";
+"transactionDetail.error" = "Error: %@";
 
 // MARK: - Not Enough Free Space
 "nefs.message" = "Not enough space on disk to do synchronisation!";