Fix keep folders links settings binding

Author: ionite34

StabilityMatrix/SettingsPage.xaml

@@ -134,7 +134,7 @@
                             Margin="0,8"
                             Text="Checkpoint Manager Options" />
                         <CheckBox 
-                            IsChecked="{Binding}"
+                            IsChecked="{Binding KeepFolderLinksOnShutdown}"
                             Margin="8" 
                             ToolTip="Normally removed on shutdown to allow the data folder to be moved without potential file explorer issues."
                             Content="Keep shared checkpoints directory symbolic links on shutdown"/>