feat(frontend): replace lazy loading with zibll lazysizes

templates/parts/content-gallery.php

@@ -35,9 +35,8 @@ if (empty($images)) return;
                class="content-gallery__link"
                <?php echo $lightbox ? 'data-lightbox="gallery"' : ''; ?>
                data-caption="<?php echo esc_attr($caption); ?>">
-                <img src="<?php echo esc_url($src); ?>"
+                <img<?php echo aksrt_get_lazy_attr('lazy_posts_content', (string) $src, 'content-gallery__img', aksrt_get_lazy_thumb('lg')); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>
                      alt="<?php echo esc_attr($alt); ?>"
-                     class="content-gallery__img"<?php echo function_exists('aksrt_lazy_loading') ? aksrt_lazy_loading('content') : ' loading="lazy"'; ?>
                      width="<?php echo esc_attr($img['width'] ?? 800); ?>"
                      height="<?php echo esc_attr($img['height'] ?? 600); ?>">
             </a>