message: fix(origin-backend-client-mock): use organization id
diff: @@ -9,7 +9,8 @@ import {
  OrganizationUpdateData,
  OrganizationRole,
  Role,
  - IOrganizationClient
  + IOrganizationClient,
  + IOrganization
  } from '@energyweb/origin-backend-core';
  interface ITmpUser {
  @@ -75,7 +76,7 @@ export class OrganizationClientMock implements IOrganizationClient {
  id: this.invitationCounter,
  email,
  role,
  - organization: organizationId,
  + organization: { id: organizationId } as IOrganization,
  status: OrganizationInvitationStatus.Pending
  };
  @@ -134,7 +135,7 @@ export class OrganizationClientMock implements IOrganizationClient {
  acceptInvitation(invitationId: number): Promise<any> {
  const invitation = this.invitationStorage.get(invitationId);
  - const organization = this.storage.get(invitation.organization as number);
  + const organization = this.storage.get(invitation.organization.id);
  const user = this.userStorage.find((user) => user.email === invitation.email);
  invitation.status = OrganizationInvitationStatus.Accepted;
  