By Mollie Quirk Meghan Markle has seemingly elevated herself from being a B-list TV actress to a “mompreneur” who flogs jam. The Duchess of Sussex, 42, recently announced her new lifestyle brand American Riviera Orchard. The mum-of-two hasn’t unveiled any further details, but the brand already has a website, Instagram page, swanky logo and rustic-looking promotional video. It is also reported that Meghan’s brand has filed trademark applications, with it rumoured that the store will stock items like jams, marmalades, makeup, skincare, haircare, fragrance, pet food, yoga mats and cushions. A har…