OSS iOS app: ImgGenSD2 updated🍀
- apple/ml-stable-diffusion v0.1.0 was released.
- `reduceMemory` option of StableDiffusionPipeline was added. and on iOS, this should be set to true.
- changed requirement: iPhone 12 => iPhone Pro 12
on iPad Pro 2020/A12Z, mem: 3.7GB => 3.0GB