At that age it’s possible that her mouth is sore due to teething. However, it’s important not to allow her to become a fussy eater. We have a thread about this here.
I can’t help you regarding wet food texture because I have only used a very few varieties and I don’t know the exact texture of the cat food. It might be better to decide whether you want to use dry or wet food then use the Dog Food Directory
filters to narrow down the search. Dry food can be moistened to make it easier for the dog just while the gums are sore. If you need any help using the Directory please ask and we will try to help.