adds collections search api endpoint

config/module.config.php

@@ -10,9 +10,7 @@ return [
                 //'type' => \Laminas\Router\Http\Segment::class,
                 'type' => \Laminas\Router\Http\Literal::class,
                 'options' => [
-                    //'route' => '/collections[/:action]',
-                    //'route' => '/collections',
-                    'route' => '/collections/search',
+                    'route' => '/api/collections/search',
                     'defaults' => [
                         '__NAMESPACE__' => 'ArchiveSiteMeta\Controller',
                         'controller' => Controller\ArchiveSiteMetaController::class,

src/Controller/ArchiveSiteMetaController.php

@@ -52,7 +52,9 @@ class ArchiveSiteMetaController extends AbstractActionController
         array_push($query_results, $site->id());
       }
     }
-    $pages = $this->api()->search('site_pages', $resources['site_pages']['query'], ['returnScalar' => 'site'])->getContent();
+    $pages = $this->api()->search('site_pages',
+                                  $resources['site_pages']['query'],
+                                  ['returnScalar' => 'site'])->getContent();
     foreach($pages as $page) {
         array_push($query_results, (int)$page);
     }