Added a widget to create a menu with a choice of search filter.

Added a widget to create a menu with a choice of search filter. For example, for use on a general search results page that does not have a search filter set. The widget is created on the "My Blocks/Menu" page as a functional menu.

Added a widget to create a menu with a choice of search filter.

Added information about the new selected method of payment and delivery (Selected by the buyer).
Added [product_group_id] for Google Merchant, as well as a field for specifying the Type of variation.
Added an editable email template about changing the status of an order.