Reality star Mama June Shannon is taking over custody of her first grandchild, 11-year-old Kaitlyn, and has plans to become her legal guardian in the wake of her daughter Anna “Chickadee” Cardwell’s death, RadarOnline.com has learned. The family has been adjusting after Shannon’s eldest daughter died over the weekend following a battle with cancer. She was 29. Sources said that Anna’s younger child, 8-year-old Kylee, is now living with her biological father, Michael Cardwell, sticking to the plan her parents arranged after Anna was diagnosed with stage IV adrenal carcinoma in January. Anna sec…