Add multi currency

1. WooCommerce Multilingual – run WooCommerce with WPML

WooCommerce Multilingual & Multicurrency with WPML

The app auto-detects the currency and display it on the app

CURCY – Multi Currency for WooCommerce – The best free currency exchange plugin – Run smoothly on WooCommerce 8.x

Change currency param in the file cirilla/lib/constants/currencies.dart

const String CURRENCY_PARAM = 'wmc-currency';