A spirited French Bulldog with a heart as big as her personality is searching for her forever home through Sandy Paws Rescue Inc., a foster-based dog rescue serving Massachusetts. Posey, a 3-year-old Frenchie weighing just over 22 pounds, has been showing off her unique personality on Martha’s Vineyard, where she’s currently thriving in foster care, but this pint-sized powerhouse needs the right family to truly shine.…