feat: Convert the CookiesKnockOutService class to a service

Convert the CookiesKnockOutService class to a service, so it is possible to alter it from your own module using a ServerProvider.

modules/cookies_asset_injector/cookies_asset_injector.module

@@ -8,7 +8,6 @@
 use Drupal\asset_injector\AssetInjectorInterface;
 use Drupal\Component\Utility\Html;
 use Drupal\cookies\Constants\CookiesConstants;
-use Drupal\cookies\CookiesKnockOutService;
 use Drupal\cookies_asset_injector\Constants\CookiesAssetInjectorConstants;
 use Drupal\Core\Asset\AttachedAssetsInterface;
 use Drupal\Core\Form\FormStateInterface;
@@ -165,7 +164,7 @@ function _cookies_asset_injector_get_blocked_assets_dom_info($active = TRUE, arr
  * Implements hook_page_attachments().
  */
 function cookies_asset_injector_page_attachments_alter(array &$attachments) {
-  $doKo = CookiesKnockOutService::getInstance()->doKnockOut();
+  $doKo = Drupal::service('cookies.knock_out')->doKnockOut();
   if ($doKo && !empty($attachments["#attached"]["library"])) {
     $blockedAssetsDomInfo = _cookies_asset_injector_get_blocked_assets_dom_info();
     $attachments["#attached"]['drupalSettings']['cookies']['cookies_asset_injector']['blocked_assets'] = $blockedAssetsDomInfo;
@@ -177,7 +176,7 @@ function cookies_asset_injector_page_attachments_alter(array &$attachments) {
  * Implements hook_js_alter().
  */
 function cookies_asset_injector_js_alter(&$javascript, AttachedAssetsInterface $attached_assets) {
-  $doKo = CookiesKnockOutService::getInstance()->doKnockOut();
+  $doKo = Drupal::service('cookies.knock_out')->doKnockOut();
   if ($doKo) {
     $blockedAssets = cookies_asset_injector_get_blocked_assets();
     if (!empty($blockedAssets)) {