Implement page layout override (#18472)

packages/twenty-server/src/engine/metadata-modules/page-layout-widget/utils/from-flat-page-layout-widget-to-page-layout-widget-dto.util.ts

@@ -1,3 +1,5 @@
+import { isDefined } from 'twenty-shared/utils';
+
 import { type FlatPageLayoutWidget } from 'src/engine/metadata-modules/flat-page-layout-widget/types/flat-page-layout-widget.type';
 import { type PageLayoutWidgetDTO } from 'src/engine/metadata-modules/page-layout-widget/dtos/page-layout-widget.dto';
 
@@ -9,6 +11,8 @@ export const fromFlatPageLayoutWidgetToPageLayoutWidgetDto = (
 
   return {
     ...rest,
+    isOverridden:
+      isDefined(rest.overrides) && Object.keys(rest.overrides).length > 0,
     objectMetadataId: objectMetadataId ?? undefined,
     createdAt: new Date(createdAt),
     updatedAt: new Date(updatedAt),