If you don’t do any thing and leave it as is. The trailer will dog track by less than one inch. Most full size vans GM, Ford, Dodge will dog track by 2” to 4” and you will never feel the difference when driving. Just looks goofy going down the road from behind.
Tires will not ware any different that if it was in perfect alignment.
Remember that the trailer is a three-point connection to the road and it will track behind your tow vehicle no matter how out of alignment it is. With a slight dog tracking there will be no difference in stopping. If it has a large dog track then the trailer will pull to one side when heavy stopping is done. That could be a problem like jackknifing the trailer or pushing the tow vehicles rear to one side. But with the small amount you have in alignment you should have no problem. You can make up any difference with the tong alignment. Just measures from the center of each hub to the center of the hitch, both sides are the same you are good to go.
Chuck