Fix fatal error: Address naming inconsistencies from WP Allstars to SEO Pro Stack refactoring

- Resolved class naming conflicts in auto-upload functionality
- Fixed menu slug from 'wp-allstars' to 'seoprostack'
- Corrected AJAX nonce references for consistency
- Updated JavaScript variable name to 'wpSeoProStack'
- Added deprecation notice to legacy auto-upload class

wp-seoprostack-plugin.php

@@ -91,6 +91,6 @@ function seoprostack_admin_assets() {
         'nonce'   => wp_create_nonce('seoprostack-nonce'),
         'updateNonce' => wp_create_nonce('updates')
     );
-    wp_localize_script('seoprostack-admin', 'seoProStack', $ajax_data);
+    wp_localize_script('seoprostack-admin', 'wpSeoProStack', $ajax_data);
 }
 add_action('admin_enqueue_scripts', 'seoprostack_admin_assets');