fix: add inheritance on OrguniSubmissionPolicy with BaseRelationResource

src/app/features/admin/models/organizational-unit-submission-policy.model.ts

-export interface OrganizationalUnitSubmissionPolicy {
+import {BaseRelationResource} from "solidify-frontend";
+
+export interface OrganizationalUnitSubmissionPolicy extends BaseRelationResource {
   defaultPolicy: boolean;
 }