fix: unclear share icon in photo viewer

This was mentioned at some point in the past, but I forgot about it, and it was
only recently that I remembered it again.

If people complain again, they must do UX research themselves and subsequently
submit a PR.

module/Photo/view/photo/album/index.phtml

@@ -487,7 +487,7 @@ $this->scriptUrl()->requireUrl('member/search')
             title: '<?= $this->translate('Share') ?>',
             html: {
                 isCustomSVG: true,
-                inner: '<use href="<?= $this->basePath('sprites/fontawesome/solid.svg#share') ?>"></use>',
+                inner: '<use href="<?= $this->basePath('sprites/fontawesome/solid.svg#share-nodes') ?>"></use>',
             },
             onClick: (event, el, pswp) => {
                 let id = pswp.currSlide.data.element.dataset.id;