[amp story shopping] Product tag functionality

[processprocess]

Description

Tapping a product tag will:

1. ✅ Set an active product in the store service
   [amp story shopping] Set active product data in store service #37013
2. Open the shopping attachment (changing templates will be part of [amp story shopping] Attachment template logic #36735)

[processprocess]

Closing since this is now part of #37535