Wizard improvements: version info, 64-bit label, paste fix

- Version cards show technical info (Version 16.0 · LTSC · OS support)
- 64-bit option labeled as "(ajánlott)"
- Full product key paste distributes across all 5 input fields

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Pages/ConfigPage.xaml

@@ -11,7 +11,7 @@
             <StackPanel Orientation="Horizontal" Margin="0,0,0,20">
                 <RadioButton x:Name="Rb64" GroupName="Arch" IsChecked="True"
                              Style="{StaticResource CardRadioButton}" Margin="0,0,10,0" MinWidth="160">
-                    <TextBlock Text="64-bit" FontSize="15" Margin="8,0"/>
+                    <TextBlock Text="64-bit (ajánlott)" FontSize="15" Margin="8,0"/>
                 </RadioButton>
                 <RadioButton x:Name="Rb32" GroupName="Arch"
                              Style="{StaticResource CardRadioButton}" MinWidth="160">