feat: localization of features/ark

[gluneau]

Summary

• Localize the features/ark UI components by replacing hardcoded strings with context.loc calls
• Add 13 new ARB keys to all language files (en, fr, es)

Changes

Dart Files Modified (5 files)

• send_success_page.dart - success title and message
• collaborative_redeem_bottom_sheet.dart - title, switch label, buttons
• ark_balance_detail_widget.dart - balance breakdown labels
• ark_tx_widget.dart - transaction type labels and pending status
• ark_transaction_details_page.dart - details page title, labels, status

New ARB Keys Added (13 keys)

Key	English	French	Spanish
arkSendSuccessTitle	Send Successful	Envoi réussi	Envío exitoso
arkSendSuccessMessage	Your Ark transaction was successful!	Votre transaction Ark a été effectuée avec succès !	¡Tu transacción Ark fue exitosa!
arkBoardingUnconfirmed	Boarding Unconfirmed	Embarquement non confirmé	Embarque sin confirmar
arkBoardingConfirmed	Boarding Confirmed	Embarquement confirmé	Embarque confirmado
arkPreconfirmed	Preconfirmed	Préconfirmé	Preconfirmado
arkSettled	Settled	Réglé	Liquidado
arkAvailable	Available	Disponible	Disponible
arkNoBalanceData	No balance data available	Aucune donnée de solde disponible	No hay datos de saldo disponibles
arkTxPending	Pending	En attente	Pendiente
arkTxBoarding	Boarding	Embarquement	Embarque
arkTxSettlement	Settlement	Règlement	Liquidación
arkTxPayment	Payment	Paiement	Pago
arkSatsUnit	sats	sats	sats

Pattern Used

Refactored ArkTransactionTypeExtension to use toTranslated(context) method for proper localization access:

extension ArkTransactionTypeExtension on ArkTransactionType {
  String toTranslated(BuildContext context) {
    switch (this) {
      case ArkTransactionType.boarding:
        return context.loc.arkTxBoarding;
      // ...
    }
  }
}

Testing

• validate_localizations.py - passed (2587 keys in sync)
• fvm flutter gen-l10n - completed successfully
• fvm flutter analyze lib/features/ark --fatal-warnings --fatal-infos - no issues found

Notes

• Many ark ARB keys already existed (used existing keys where applicable)
• New keys were placed after existing ark keys around line 4930 in ARB files
• The lib/core/ark/ module contains only domain logic with no user-facing strings

[ethicnology]

localization need to be rebased

[ethicnology]

#740