feat(frontend): replace lazy loading with zibll lazysizes

inc/helpers/user-center-renderers/credits-vip.php

@@ -52,7 +52,7 @@ if ($vip_level >= 1 && !empty($vip_settings['levels'][$vip_level]['name'])) {
 
 $level_icon_url = esc_url((string) ($vip_settings['levels'][$vip_level]['img_icon'] ?? ''));
 $level_icon = $level_icon_url !== ''
-	? '<img class="aksrt-vip-level-icon" src="' . $level_icon_url . '" alt="" loading="lazy" decoding="async">'
+	? '<img' . aksrt_get_lazy_attr('lazy_other', $level_icon_url, 'aksrt-vip-level-icon') . ' alt="" decoding="async">'
 	: '<i class="fas fa-crown" aria-hidden="true"></i>';
 if (class_exists('\AKSRT\Settings\Settings')) {
 	$paid_display = \AKSRT\Settings\Settings::get_paid_content_settings();