Vanessa Trump helped daughter Kai shop for her new college apartment amid her cancer battle. “I am totally exhausted from going to her apartment and coming back and forth and moving everything,” Vanessa said while the pair were at Target in Kai’s Instagram video shared on Sunday. Kai, who just started her freshman year at the University of Miami, explained that her mom “drove to Miami for no reason yesterday” because the 19-year-old “messed up the furniture delivery.” “It’s OK. It was during rush hour too, so it was fun times,” Vanessa, 48, sarcastically said, adding, “What we do for our children, right?” Vanessa listed everything Kai…