[fix:] default module config was wrong

DataStore/SchemaMigration.cs

@@ -99,8 +99,7 @@ public static class SchemaMigration
         // Example: Add a new field that didn't exist before
         if (!obj.ContainsKey("moduleConfig"))
         {
-            string deflt = JsonConvert.SerializeObject(new ModuleConfig());
-            obj["moduleConfig"] = default;
+            obj["moduleConfig"] = JToken.FromObject(new ModuleConfig());
         }
 
         return obj;

DataStore/Settings.cs

@@ -20,7 +20,7 @@ public class Settings
     public Customers customers = new();
     public PdfExportSettings pdfExport { get; set; } = new();
 
-    public ModuleConfig moduleConfig { get; set; } = new();
+    public ModuleConfig moduleConfig { get; set; } = new ModuleConfig();
 
     public Settings()
     {
@@ -79,6 +79,10 @@ public class ModuleConfig
     /// Contains enabled modules and whether it's password-protected or not (non-existing-feature but soon)
     /// </summary>
     public List<(LCModule, bool)> EnabledModules = new();
+    public ModuleConfig()
+    {
+        EnabledModules = new List<(LCModule,bool)>();
+    }
 }
 
 public enum LCModule