inside each .box copy the data-elementor-lightbox property of the element with the .elementor-custom-embed-image-overlay class and paste in the elements with the .title class inside that .box (by askjarvis.io)

javascript.js

const caixas = document.querySelectorAll('.caixa');

caixas.forEach(caixa => {
  const dataElementorLightbox = caixa.querySelector('.elementor-custom-embed-image-overlay').getAttribute('data-elementor-lightbox');
  const titles = caixa.querySelectorAll('.title');

  titles.forEach(title => {
    title.setAttribute('data-elementor-lightbox', dataElementorLightbox);
  });
});