fix broken prompts from file

def load_prompt_file(file):

    if file is None:

        lines = []

        return None, gr.update(), gr.update(lines=7)

    else:

        lines = [x.strip() for x in file.decode('utf8', errors='ignore').split("\n")]

        return None, "\n".join(lines), gr.update(lines=7)

class Script(scripts.Script):

    def title(self):

        return "Prompts from file or textbox"

        prompt_txt = gr.Textbox(label="List of prompt inputs", lines=1, elem_id=self.elem_id("prompt_txt"))

        file = gr.File(label="Upload prompt inputs", type='binary', elem_id=self.elem_id("file"))

        file.change(fn=load_prompt_file, inputs=[file], outputs=[file, prompt_txt, prompt_txt])

        file.change(fn=load_prompt_file, inputs=[file], outputs=[file, prompt_txt, prompt_txt], show_progress=False)

        # We start at one line. When the text changes, we jump to seven lines, or two lines if no \n.

        # We don't shrink back to 1, because that causes the control to ignore [enter], and it may

        # be unclear to the user that shift-enter is needed.

        prompt_txt.change(lambda tb: gr.update(lines=7) if ("\n" in tb) else gr.update(lines=2), inputs=[prompt_txt], outputs=[prompt_txt])

        prompt_txt.change(lambda tb: gr.update(lines=7) if ("\n" in tb) else gr.update(lines=2), inputs=[prompt_txt], outputs=[prompt_txt], show_progress=False)

        return [checkbox_iterate, checkbox_iterate_batch, prompt_txt]

    def run(self, p, checkbox_iterate, checkbox_iterate_batch, prompt_txt: str):