Add a Table display mode to relation field widgets (#20929)

## Context

Adds a new Table layout to the FIELD widget for to-many relation fields.
On a record page, a relation can now be displayed as a full record table
(the same component used for record indexes and dashboard table widgets)
scoped to the records related to the current record.



https://github.com/user-attachments/assets/320b24dc-f019-4d0e-bc71-3e64d032d75a



https://github.com/user-attachments/assets/2f6d4f8e-de26-4fc1-ae12-c9b9c19654dc



https://github.com/user-attachments/assets/3fb6d512-f83c-4818-823e-46ad2644fbc2

packages/twenty-server/src/engine/workspace-manager/workspace-migration/workspace-migration-runner/action-handlers/page-layout-widget/services/utils/from-universal-configuration-to-flat-page-layout-widget-configuration.util.ts

@@ -334,15 +334,36 @@ export const fromUniversalConfigurationToFlatPageLayoutWidgetConfiguration = ({
     }
 
     case WidgetConfigurationType.FIELD: {
-      const { fieldMetadataId: fieldMetadataUniversalIdentifier, ...rest } =
-        universalConfiguration;
+      const {
+        fieldMetadataId: fieldMetadataUniversalIdentifier,
+        viewId: viewUniversalIdentifier,
+        ...rest
+      } = universalConfiguration;
 
       const fieldMetadataId = resolveFieldMetadataIdOrThrow({
         fieldMetadataUniversalIdentifier,
         flatFieldMetadataMaps,
       });
 
-      return { ...rest, fieldMetadataId };
+      let viewId: string | undefined = undefined;
+
+      if (isDefined(viewUniversalIdentifier)) {
+        const flatView = findFlatEntityByUniversalIdentifier({
+          flatEntityMaps: flatViewMaps,
+          universalIdentifier: viewUniversalIdentifier,
+        });
+
+        if (!isDefined(flatView)) {
+          throw new FlatEntityMapsException(
+            `View not found for universal identifier: ${viewUniversalIdentifier}`,
+            FlatEntityMapsExceptionCode.ENTITY_NOT_FOUND,
+          );
+        }
+
+        viewId = flatView.id;
+      }
+
+      return { ...rest, fieldMetadataId, viewId };
     }
 
     case WidgetConfigurationType.VIEW: