fix: use string format to normalize decimal

cms/models.py

@@ -2250,7 +2250,7 @@ def normalized_ceus(self):
         """
         Normalizes the CEUs from decimal to string. Removes the trailing zeros if any.
         """
-        return str(self.CEUs.normalize()) if self.CEUs else None
+        return f"{self.CEUs.normalize():f}" if self.CEUs else None
 
     def get_context(self, request, *args, **kwargs):
         preview_context = {}