Backpack

I added the native tab navigator which imo looks the best for both Android and iOS. I plan on doing the frontend first (because I don’t know how to do the backend) and will do the backend after I gain some more knowledge

Set up basic pages and a test modal. The test modal will be removed later. I was messing around with modal props before I added the project to Flavor Town. The pages are the home, assignments, and schedule pages, which I will continue to work on. I also plan on adding native navigation in the future