No dont, Dragonborn dont have darkvision in D&D (weird as that may sound), this should not be changed for BG3. There are many races with Darkvision (most I believe). Adding darkvision to yet another race would just further add to the imbalance of races with darkvision. Darkvision should be a special ability. As it is, its almost the norm among races, where it should infact have been the opposite.
