Added a group change "Prices" - "Markup", based on the "Purchase price".

Added a group change "Prices" - "Markup", based on the "Purchase price". The function takes into account the "Markup" only for those product cards for which the "Purchase price" is specified.

Added an information panel with the results of the latest import.
Added the function of automatic markup during import.
The function of saving sorting in the Admin Center and Sales Statistics has been updated.