Refactor plugin with improved architecture and new features

- Eliminated code duplication by creating common HTTP request function
- Added configurable SSL verification setting for development/production
- Implemented smart caching system with 1-hour cache duration
- Enhanced admin interface with cache management and better styling
- Improved error handling and user experience
- Added comprehensive documentation and troubleshooting guide
- Updated README with new features and configuration options

fw-store-embed.php

@@ -17,3 +17,4 @@ function set_fw_store_embed_css() {
 }
 
 add_action( 'wp_enqueue_scripts', 'set_fw_store_embed_css' );
+add_action( 'admin_enqueue_scripts', 'set_fw_store_embed_css' );