Mailto with subject as Service

import { Injectable } from '@angular/core';

@Injectable({
  providedIn: 'root'
})
export class MailtoService {
  private readonly _email = 'hellodata@trendency.hu';
  private readonly _subject = 'Ajánlatot kérek';

  public openMailto(body?: string): void {
    const mailtoUrl = `mailto:${this._email}?subject=${encodeURIComponent(this._subject)}${
      body ? `&body=${encodeURIComponent(body)}` : ''
    }`;

    window.location.href = mailtoUrl;
  }
}

private readonly _mailto = inject(MailtoService);

public mailtoWithSubject(): void {
    this._mailto.openMailto();
}

<app-button [label]="'HEADER.LABEL' | transloco" (clickEvent)="mailtoWithSubject()" />