Add view classes for articles, banners, languages, menu, newsletter, containers, shop categories, clients, payment methods, products, and search

- Created Articles.php for rendering article views including full articles, miniature lists, and news sections.
- Added Banners.php for handling banner displays.
- Introduced Languages.php for rendering language options.
- Implemented Menu.php for dynamic menu rendering.
- Developed Newsletter.php for newsletter view rendering.
- Created Scontainers.php for rendering specific containers.
- Added ShopCategory.php for category descriptions and product listings.
- Introduced ShopClient.php for managing client-related views such as address editing and order history.
- Implemented ShopPaymentMethod.php for displaying payment methods in the basket.
- Created ShopProduct.php for generating product URLs.
- Added ShopSearch.php for rendering a simple search form.
- Added .htaccess file to enhance security by restricting access to sensitive files and directories.

admin/ajax/users.php

@@ -1,9 +1,11 @@
 <?php
-$a = \S::get( 'a' );
+$a = \Shared\Helpers\Helpers::get( 'a' );
 
 if ( $a == 'check_login' )
 {
-  $response = \admin\factory\Users::check_login( \S::get( 'login' ), \S::get( 'user_id' ) );
+  global $mdb;
+  $repository = new \Domain\User\UserRepository( $mdb );
+  $response = $repository->checkLogin( (string)\Shared\Helpers\Helpers::get( 'login' ), (int)\Shared\Helpers\Helpers::get( 'user_id' ) );
   echo json_encode( $response );
   exit;
-}
+}