Use extended selection mode

Fixes #28

src/gui/reportdialog.cpp

@@ -201,6 +201,7 @@ void ReportDialog::onPrintSellerReceiptButtonClicked()
         return;
 
     auto indexes = selModel->selectedRows();
+    std::ranges::sort(indexes);
 
     auto printerDevice =
         convertToPosPrinterDevice(posPrinterDevice.toStdString(), posPrinterEndpoint.toStdString());

src/gui/reportdialog.ui

@@ -19,7 +19,7 @@
      <item>
       <widget class="QTableView" name="reportView">
        <property name="selectionMode">
-        <enum>QAbstractItemView::MultiSelection</enum>
+        <enum>QAbstractItemView::ExtendedSelection</enum>
        </property>
        <property name="selectionBehavior">
         <enum>QAbstractItemView::SelectRows</enum>