Create more nav items in account

In account area pages from Bonus System are shown. It is possible to add additional pages

When customers log into the account area, the pages "Points Account" and "Bonus Products" (if the feature has been activated) are displayed by default.

Additionally, more pages can be added. This could be, for example, a page with instructional text.

Additional pages can be selected in the extension configuration in the menu under the item "Show shop pages at bonus system. menu". All experience worlds of the type "shop page" are available.