FEATURE: add homepage settings for base of one page pages

templates/Base/OnePage/Handlers/OnePage.php

@@ -8,6 +8,11 @@ use App\Models\User;
 
 abstract class OnePage implements TemplateHandler
 {
+    /**
+     * Name of settings key for list of pages used on homepage
+     */
+    const HOMEPAGE_PAGES_SETTINGS_KEY = 'template.onepage.homepagePages';
+
     /**
      * Register admin menu (or multiple ones)
      *