feat(frontend): replace lazy loading with zibll lazysizes

inc/helpers/aksrt-links.php

@@ -152,7 +152,7 @@ if (!function_exists('aksrt_links_box')) :
 			$dec      = !empty($link['desc']) ? (string) $link['desc'] : '';
 			$rel      = $nofollow ? ' rel="nofollow noopener noreferrer"' : ' rel="noopener noreferrer"';
 			$img_src  = $src !== '' ? $src : $placeholder;
-			$img      = '<img class="lazyload aksrt-lazy avatar" src="' . esc_url($placeholder) . '" data-src="' . esc_url($img_src) . '" alt="" loading="lazy">';
+			$img      = '<img' . aksrt_get_lazy_attr('lazy_other', $img_src, 'avatar') . ' alt="">';
 			$data_dec = $dec !== ''
 				? ' title="' . esc_attr($title) . '" data-content="' . esc_attr($dec) . '"'
 				: ' data-content="' . esc_attr($title) . '"';
@@ -385,7 +385,7 @@ if (!function_exists('aksrt_link_get_search_cover')) :
 			. '<div class="tab-content">' . $type_con . '</div></div></div>';
 
 		return '<div class="page-cover theme-box radius8 main-shadow link-page-search-cover">'
-			. '<img class="fit-cover no-scale lazyload" src="' . esc_url($src) . '" data-src="' . esc_url($img) . '" alt="">'
+			. '<img' . aksrt_get_lazy_attr('lazy_cover', (string) $img, 'fit-cover no-scale', (string) $src) . ' alt="">'
 			. $search . '</div>';
 	}
 endif;