Changes the "Start shopping" button URL.

wishlist-power-change-empty-button-url.js

const newURL = '{%  if routes.root_url != '/' %}{{ routes.root_url }}{% endif %}/collections/all';

function changeButtonURL(newURL) {
  const wishlistContainer = document.querySelector('ooo-wl-page-container');

  if (!wishlistContainer) return;

  const wishlistContent = wishlistContainer.shadowRoot.querySelector('ooo-wl-page-content');

  if (!wishlistContent) return;

  const wishlistPageContentInfo = wishlistContent.querySelector('ooo-wl-page-content-info');

  if (!wishlistPageContentInfo) return;

  wishlistPageContentInfo.shadowRoot.querySelector('a').setAttribute('href', newURL);
}

document.addEventListener('ooo-wishlist:page-viewed', () => {
  setTimeout(() => {
    changeButtonURL(newURL);
  }, 100)
});