SakataGo

- We improved the SGF reading capabilities to handle SGF files from kifu photo apps and SGF files with pre-set positions. - We improved the compatibility of the app with iPad (7th generation) models from 2019/2020 running on iPadOS 18. We noticed after a bug report that the GPU of these devices cannot properly handle some features of SakataGo. A new "small model" was added which has much better performance on these devices. However, we also had to switch off the human imitation modes, as they cannot be operated reliably on the old hardware. - Fixed a bug in the handling of imported SGF files leading to incorrect move quality indications in certain cases.