added natural image height and width without defined it with data-psw…

[spoitler]

• Added support for undefined height and width on images with using naturalWidth and naturalHeight of the images.
  Discussion référence : Photoswipe 5 without defining image width and height? #1988

The data-pswp-width and data-pswp-height still working, but now it is optional.

before

<ul id="my-gallery">
  <li>
    <a href="https://..." data-pswp-width="1669" data-pswp-height="2500" target="_blank">
      <img src="https://..." alt="" loading="lazy">
    </a>
  </li>
</ul>

after

<ul id="my-gallery">
  <li>
    <a href="https://..." target="_blank">
      <img src="https://..." alt="" loading="lazy">
    </a>
  </li>
</ul>

[dimsemenov]

I'm not sure that relying on thumbnail dimensions is a good idea, especially as a default behavior. The domItemData filter allows you to do this without modifying the lib.

[otary]

I think setting the default width and height is a good idea. Once the width and height preview is not set, there will be problems. Setting the default width and height can be used as a compatibility solution

[pxp1230]

Yes, this is not a big problem. Both data-pswp-width and data-pswp-height can be dynamically assigned after the image is loaded.