message: feat(origin-backend-app): organization created email is sent to lead user email too
diff: -import { OrganizationRegisteredEvent, UserService } from '@energyweb/origin-backend';
  -import { Role } from '@energyweb/origin-backend-core';
  import { Logger } from '@nestjs/common';
  import { EventsHandler, IEventHandler } from '@nestjs/cqrs';
  +import { OrganizationRegisteredEvent, UserService } from '@energyweb/origin-backend';
  +import { Role } from '@energyweb/origin-backend-core';
  +import { RegistrationService } from '@energyweb/origin-organization-irec-api';
  import { MailService } from '../../mail';
  @@ -11,14 +12,19 @@ export class OrganizationRegisteredHandler implements IEventHandler<Organization
  constructor(
  private readonly mailService: MailService,
  - private readonly userService: UserService
  + private readonly userService: UserService,
  + private readonly registrationService: RegistrationService
  ) {}
  public async handle(event: OrganizationRegisteredEvent): Promise<void> {
  const { organization, member } = event;
  const admins = await this.userService.getAll({ where: { rights: Role.Admin } });
  - const emails = admins.map((a) => a.email);
  + const registrations = await this.registrationService.find(String(organization.id));
  + const emails = [
  + ...registrations.map((r) => r.leadUserEmail),
  + ...admins.map((a) => a.email)
  + ];
  const result = await this.mailService.send({
  to: emails,
  