My wife got her iPhone 12 pro today. She got 128GB. Her old iPhone 11 Pro was 256GB, but she was only using about 70GB. When we set up the iPhone 12, it says the storage is full. Looking at it, her phone has downloaded 70GB worth of photos, whereas her old one was only using like 8 GB, with the rest just thumbnails and better versions in iCloud. How do we go about fixing this issue?