Add deleteOneObject mutation (#3682)

* Add deleteOneObject mutation

* codegen

* move relationToDelete to dedicated file

---------

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

packages/twenty-server/src/metadata/relation-metadata/types/relation-to-delete.ts

@@ -0,0 +1,14 @@
+export type RelationToDelete = {
+  id: string;
+  fromFieldMetadataId: string;
+  toFieldMetadataId: string;
+  fromFieldMetadataName: string;
+  toFieldMetadataName: string;
+  fromObjectMetadataId: string;
+  toObjectMetadataId: string;
+  fromObjectName: string;
+  toObjectName: string;
+  toFieldMetadataIsCustom: boolean;
+  toObjectMetadataIsCustom: boolean;
+  direction: string;
+};