ui redraw on UIlist actions and code cleanup

2.0.9

- fix: prefix/suffix UIlist actions trigger UI redraw to see changes live
- changed: PropertyGroups are now registered in their own file
- code: cleanup

properties.py

@@ -244,4 +244,22 @@ class GP_PG_namespace_props(PropertyGroup):
 class GP_PG_namespaces(PropertyGroup):
     idx : IntProperty(default=-1)
 
-    namespaces : bpy.props.CollectionProperty(type=GP_PG_namespace_props)
+    namespaces : bpy.props.CollectionProperty(type=GP_PG_namespace_props)
+
+classes = (
+    # Prefix/suiffix prefs prop group
+    GP_PG_namespace_props,
+    GP_PG_namespaces,
+
+    ## General toolbox settings
+    GP_PG_FixSettings,
+    GP_PG_ToolsSettings,
+)
+
+def register():
+    for cls in classes:
+        bpy.utils.register_class(cls)
+
+def unregister():
+    for cls in reversed(classes):
+        bpy.utils.unregister_class(cls)