message: CSV export typo
diff: <div class="uk-card uk-card-default uk-margin" *ngIf="!walletService.isLedgerWallet()">
  <div class="uk-card-header">
  - <h3 class="uk-card-title">Export Transaction History (csv files)</h3>
  + <h3 class="uk-card-title">Export Transaction History (CSV file)</h3>
  </div>
  <div class="uk-card-body">
  <p>
  </div>
  <div class="uk-width-1-1 narrow-div">
  - <button *ngIf="!exportingCsv" class="uk-button uk-button-primary uk-width-1-1" type="button" [disabled]="!settings.settings.serverAPI" (click)="exportToCsv()">{{settings.settings.serverAPI ? 'EXPORT TO FILE':'NOT AVAILABLE IN OFFLINE MODE'}}</button>
  + <button *ngIf="!exportingCsv" class="uk-button uk-button-primary uk-width-1-1" type="button" [disabled]="!settings.settings.serverAPI" (click)="exportToCsv()">{{settings.settings.serverAPI ? 'EXPORT HISTORY':'NOT AVAILABLE IN OFFLINE MODE'}}</button>
  <button *ngIf="exportingCsv" class="uk-button uk-button-primary uk-disabled uk-width-1-1" type="button"><span class="uk-margin-right" uk-spinner></span> FETCHING HISTORY...</button>
  </div>
  </div>
  