FlaxStableDiffusionImg2ImgPipeline should delete prepare_inputs and provide prepare_text_inputs and prepare_image_inputs

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in https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/stable_diffusion/pipeline_flax_stable_diffusion_img2img.py#L170
prepare_inputs(self, prompt: Union[str, List[str]], image: Union[Image.Image, List[Image.Image]]) accept both prompt and image
But there are prompt_ids and neg_prompt_ids in https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/stable_diffusion/pipeline_flax_stable_diffusion_img2img.py#L338 which prompt (positive or negative) I should put to prepare_inputs?

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like https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/controlnet/pipeline_flax_controlnet.py#L180 and https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/controlnet/pipeline_flax_controlnet.py#L194
delete prepare_inputs and provide prepare_text_inputs and prepare_image_inputs

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