Added own notification to the buyer about the payment.

Added own notification to the buyer about the payment. You can enable the message in the settings of payment systems. You can edit your message in the Email Template Catalog.

Added [product_group_id] for Google Merchant, as well as a field for specifying the Type of variation.
Added a library of SVG icons to the Mobile menu, as well as the ability to change their color.
Added automatic currency replacement when changing the site language.