fix: [Community pipeline] Fix flattened elements on image (#10774)
* feat: new community mixture_tiling_sdxl pipeline for SDXL mixture-of-diffusers support
* fix use of variable latents to tile_latents
* removed references to modules that are not being used in this pipeline
* make style, make quality
* fixfeat: added _get_crops_coords_list function to pipeline to automatically define ctop,cleft coord to focus on image generation, helps to better harmonize the image and corrects the problem of flattened elements.