small rework for img2img PNG info

                    info_img = Image.open(info_img_path)

                geninfo, _ = imgutil.read_info_from_image(info_img)

                parsed_parameters = parse_generation_parameters(geninfo)

                if("Prompt" in png_info_props):

                    p.prompt = prompt + " " + parsed_parameters["Prompt"]

                if("Negative prompt" in png_info_props):

                    p.negative_prompt = negative_prompt + " " + parsed_parameters["Negative prompt"]

                if("Seed" in png_info_props):

                    p.seed = int(parsed_parameters["Seed"])

                if("CFG scale" in png_info_props):

                    p.cfg_scale = float(parsed_parameters["CFG scale"])

                if("Sampler" in png_info_props):

                    p.sampler_name = parsed_parameters["Sampler"]

                if("Steps" in png_info_props):

                    p.steps = int(parsed_parameters["Steps"])

            except Exception as e:

                print(f"batch png info: using ui set prompts; failed to get png info for {image}")

                print(e)

                p.prompt = prompt

                p.negative_prompt = negative_prompt

                p.seed = seed

                p.cfg_scale = cfg_scale

                p.sampler_name = sampler_name

                p.steps = steps

                parsed_parameters = {k: v for k, v in parsed_parameters.items() if k in (png_info_props or {})}

            except Exception:

                parsed_parameters = {}

            p.prompt = prompt + (" " + parsed_parameters["Prompt"] if "Prompt" in parsed_parameters else "")

            p.negative_prompt = negative_prompt + (" " + parsed_parameters["Negative prompt"] if "Negative prompt" in parsed_parameters else "")

            p.seed = int(parsed_parameters.get("Seed", seed))

            p.cfg_scale = float(parsed_parameters.get("CFG scale", cfg_scale))

            p.sampler_name = parsed_parameters.get("Sampler", sampler_name)

            p.steps = int(parsed_parameters.get("Steps", steps))

        proc = modules.scripts.scripts_img2img.run(p, *args)

        if proc is None: