Update for Blender 5.2

- use new api compositor access
- Fix file output nodes connexion/renumber/rename/slots handlibng
- consider the new output types
- fixes node position with new API
- fix errors with handler

LLM assisted update

preferences.py

@@ -133,7 +133,7 @@ def register():
         bpy.app.handlers.load_post.append(set_render_toolbox_settings)
 
 def unregister():
-    if not 'set_render_toolbox_settings' in [hand.__name__ for hand in bpy.app.handlers.load_post]:
+    if 'set_render_toolbox_settings' in [hand.__name__ for hand in bpy.app.handlers.load_post]:
         bpy.app.handlers.load_post.remove(set_render_toolbox_settings)
 
     for cls in reversed(classes):