feat: implement header/footer visibility controls for checkout and thankyou pages

- Created LayoutWrapper component to conditionally render header/footer based on route
- Created MinimalHeader component (logo only)
- Created MinimalFooter component (trust badges + policy links)
- Created usePageVisibility hook to get visibility settings per page
- Wrapped ClassicLayout with LayoutWrapper for conditional rendering
- Header/footer visibility now controlled directly in React SPA
- Settings: show/minimal/hide for both header and footer
- Background color support for checkout and thankyou pages

includes/Core/Bootstrap.php

@@ -27,6 +27,7 @@ use WooNooW\Branding;
 use WooNooW\Frontend\Assets as FrontendAssets;
 use WooNooW\Frontend\Shortcodes;
 use WooNooW\Frontend\TemplateOverride;
+use WooNooW\Frontend\PageAppearance;
 
 class Bootstrap {
     public static function init() {
@@ -44,6 +45,7 @@ class Bootstrap {
         FrontendAssets::init();
         Shortcodes::init();
         TemplateOverride::init();
+        new PageAppearance();
         
         // Activity Log
         ActivityLogTable::create_table();