major refactoring of modules

Signed-off-by: Vladimir Mandic <mandic00@live.com>

scripts/animatediff.py

@@ -2,7 +2,7 @@ import os
 import gradio as gr
 import diffusers
 from safetensors.torch import load_file
-from modules import scripts, processing, shared, devices, sd_models
+from modules import scripts_manager, processing, shared, devices, sd_models
 
 
 # config
@@ -189,12 +189,12 @@ def set_free_noise(frames):
         shared.sd_model.enable_free_noise(context_length=context_length, context_stride=context_stride)
 
 
-class Script(scripts.Script):
+class Script(scripts_manager.Script):
     def title(self):
         return 'Video: AnimateDiff'
 
     def show(self, is_img2img):
-        # return scripts.AlwaysVisible if shared.native else False
+        # return scripts_manager.AlwaysVisible if shared.native else False
         return not is_img2img
 
 
@@ -231,7 +231,7 @@ class Script(scripts.Script):
         lora = LORAS[lora_index]
         set_adapter(adapter)
         if motion_adapter is None:
-            return
+            return None
         set_scheduler(p, adapter, override_scheduler)
         set_lora(p, lora, strength)
         set_free_init(fi_method, fi_iters, fi_order, fi_spatial, fi_temporal)