Added [product_group_id] for Google Merchant, as well as a field for specifying the Type of variation.

Added [product_group_id] for Google Merchant, as well as a field for specifying the Type of variation. By default Any kind of product will be - size [size]

Updated the settings for the arrangement of elements in the product card.
Added automatic cell matching recognition when importing categories, manufacturers and collections.
Added own notification to the buyer about the payment.