Angelina Jolie and Brad Pitt’s son Pax Jolie-Pitt is making a slow and steady recovery after his terrible e-bike accident in July. As OK! reported, the 20-year-old was hospitalized after he crashed his bike into the back of a stopped car in Los Angeles, but he’s now back at home. While the family — which also includes the exes’ children Maddox, 22, Zahara, 19, Shiloh, 18, and twins Knox and Vivienne, 16 — is “so happy to have him home” and are “trying to stay optimistic … it’s been pretty terrifying to see him in this condition,” one source told a news outlet. The source noted all of the kid…