LOS ANGELES -- Chrissy Teigen will grace the front of People magazine’s “The Beautiful Issue” in a cover story that delves into her evolved definition of beauty, facing racism growing up and her heartbreaking miscarriage last year.The magazine revealed the cover Wednesday of the annual issue, which hits newsstands Friday.On this year’s cover, Teigen appears smiling along with her children Luna, 4, and Miles, 2, with the quote “I’ve learned how strong I am.” The 35-year-old model and cookbook