Migrate field widgets to backend (#18808)

- Renamed FieldConfiguration's layout field to fieldDisplayMode as it
caused issues with the layout field of BarChartConfiguration
- Create relation Field widgets for standard objects

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Co-authored-by: Charles Bochet <charles@twenty.com>

packages/twenty-shared/src/types/page-layout/page-layout-widget-configuration.type.ts

@@ -93,6 +93,8 @@ export type ViewConfiguration = {
 
 export type FieldConfiguration = {
   configurationType: 'FIELD';
+  fieldMetadataId: string;
+  fieldDisplayMode: 'CARD' | 'FIELD' | 'VIEW';
 };
 
 export type FieldsConfiguration = {