Not eating/drinking right after switching homes is actually very normal. I commonly see this when I bring new rabbits into my breeding program.
The best thing to do is to find out which type of pellets she was on before, and start her on those. The more a rabbit is exposed to their own normalcy, the more normal they will act.
Having their "own" pellets is a great first step and will encourage her to eat. If, at a later time, you choose to switch to a different pellet, do it very slowly. Mixing in a bit of the new into the old until it's entirely switched over.
As far as water, be sure you're offering it in the same way she had it before. If she's used to a bottle, a bottle should be fine. If she's used to a crock, use a crock. This will make her feel more comfortable and will encourage her to drink.
But traveling and moving is a very stressful thing, so as long as she's pooping and active, don't worry too much. It may take a day or two for her appetite to come back and for her to really start eating/drinking again and up to a week or for her to start consuming in normal amounts.
During this transition, I highly recommend offering a fresh grass hay and sprinkling oats on top of her feed (regular, uncooked oatmeal), like previously suggested. Weanling enteritis (diarrhea) is common in babies of this age when they're switching feeds and encountering the stress of a new environment. I've found that oats help to regulate their digestive system and prevent soft or runny poop. Plus, they love them and it helps entice them to eat.
Good luck with the new baby! As suggested, she may enjoy a cardboard box to rest in until she becomes more comfortable with her new surroundings.