fix(prefs): apply KindredCreate defaults after Reset All (#229)

When "Reset All" is used in Preferences, restoreDefaults() clears the
entire User parameter tree via ParameterManager::Clear(). Widgets then
fall back to upstream FreeCAD hardcoded defaults (e.g. light theme,
default units) instead of Kindred Create defaults.

After clearing, apply the KindredCreate preference pack to restore
Create-specific baseline settings (Catppuccin Mocha theme, toolbar
layout, unit preferences, etc.).

src/Gui/Dialogs/DlgPreferencesImp.cpp

@@ -66,8 +66,10 @@
 
 #include "Dialogs/DlgPreferencesImp.h"
 #include "ui_DlgPreferences.h"
+#include "Application.h"
 #include "BitmapFactory.h"
 #include "MainWindow.h"
+#include "PreferencePackManager.h"
 #include "Tools.h"
 #include "WidgetFactory.h"
 
@@ -834,6 +836,12 @@ void DlgPreferencesImp::restoreDefaults()
             .GetParameterGroupByPath("User parameter:BaseApp/Preferences/General")
             ->SetBool("SaveUserParameter", saveParameter);
 
+        // Re-apply Kindred Create defaults so we don't revert to upstream FreeCAD defaults
+        auto* packMgr = Gui::Application::Instance->prefPackManager();
+        if (packMgr) {
+            packMgr->apply("KindredCreate");
+        }
+
         reject();
     }
 }