Actualización de plugin de whatsapp a 5.0.1

Actualización de plugin de whatsapp a 5.0.1 en las paginas de oyv con las siguientes mejoras. NEW: Live Preview Panel on wp-admin settings page. NEW: Onboarding page. NEW: Custom CSS advanced field. NEW: Added setting to clear all Joinchat data on uninstall. NEW: Multi-language notice to inform about to set settings in main language. CHANGE Replace QR generator library (reduces 13.9kB, 4.8kB gzipped). CHANGE Optimized, only load translations in admin pages. CHANGE Better styles when chatbox has scroll. ACTUALIZADA librería «International Telephone Input» (18.1.6). BREAK Changed all PHP class names to follow WordPress Coding Standards.