message: modified transactionService to same syntax than others
diff: @@ -847,26 +847,23 @@ export default class TransactionService {
  public static convertToCSV(req: Request, transactions: Transaction[], writeHeader = true): string {
  let csv = '';
  -
  + const i18nManager = new I18nManager(req.user.locale);
  // Header
  if (writeHeader) {
  - const headerArray = [
  - 'users.id',
  - 'chargers.chargingStation',
  - 'chargers.connector',
  - 'users.userID',
  - 'users.user',
  - 'general.startDate',
  - 'general.startTime',
  - 'general.endDate',
  - 'general.endTime',
  - 'transactions.totalConsumption',
  - 'transactions.totalDuration',
  - 'transactions.totalInactivity',
  - 'general.price',
  - 'general.priceUnit'
  - ];
  - csv = UtilsService.getCsvColumnHeaders(headerArray, req.user.locale);
  + csv = `${i18nManager.translate('users.id')}${Constants.CSV_SEPARATOR}`;
  + csv += `${i18nManager.translate('chargers.chargingStation')}${Constants.CSV_SEPARATOR}`;
  + csv += `${i18nManager.translate('chargers.connector')}${Constants.CSV_SEPARATOR}`;
  + csv += `${i18nManager.translate('users.userID')}${Constants.CSV_SEPARATOR}`;
  + csv += `${i18nManager.translate('users.user')}${Constants.CSV_SEPARATOR}`;
  + csv += `${i18nManager.translate('general.startDate')}${Constants.CSV_SEPARATOR}`;
  + csv += `${i18nManager.translate('general.startTime')}${Constants.CSV_SEPARATOR}`;
  + csv += `${i18nManager.translate('general.endDate')}${Constants.CSV_SEPARATOR}`;
  + csv += `${i18nManager.translate('general.endTime')}${Constants.CSV_SEPARATOR}`;
  + csv += `${i18nManager.translate('transactions.totalConsumption')}${Constants.CSV_SEPARATOR}`;
  + csv += `${i18nManager.translate('transactions.totalDuration')}${Constants.CSV_SEPARATOR}`;
  + csv += `${i18nManager.translate('transactions.totalInactivity')}${Constants.CSV_SEPARATOR}`;
  + csv += `${i18nManager.translate('general.price')}${Constants.CSV_SEPARATOR}`;
  + csv += `${i18nManager.translate('general.priceUnit')}${Constants.CSV_SEPARATOR}`;
  }
  // Content
  for (const transaction of transactions) {
  