✅ enable single-click cell editing in Avalonia DataGrid

<DataGridTextColumn Header="SplitLength" 
                    Binding="{Binding SplitLength}" 
                    IsReadOnly="False" 
                    Width="1*" 
                    Tag="SplitLength"/>

<DataGrid Name="Table" ItemsSource="{Binding PartsFiltered}"
              CanUserReorderColumns="False"
              CanUserResizeColumns="True"
              CanUserSortColumns="True"
              GridLinesVisibility="All"
              FontSize="5"
              BorderThickness="1" BorderBrush="Gray"
              CellEditEnding="Table_CellEditEnding"
              CellPointerPressed="Table_OnCellPointerPressed">

private void Table_OnCellPointerPressed(object? sender, DataGridCellPointerPressedEventArgs e)
        {
            // only for the SplitLength column
            if (e.Column is DataGridTextColumn textColumn &&
                textColumn.Tag?.ToString() == "SplitLength")
            {
                // i guess i need to do something here?
            }
        }