Improve styling of gallery items

Use `modules.paths.models_path` instead `modules.shared.model_path`.

Use `modules.images.save_image()` instead.

Fix memory leak and reduce memory usage

split vals not 's' from tests

Outpainting mk2, prevent generation of a completely random image every time even when global seed is static

use typing.list in prompt_parser.py for wider python version support

added support for AND from https://energy-based-model.github.io/Compositional-Visual-Generation-with-Composable-Diffusion-Models/