some syntactic fixes

src/message/message.py

@@ -11,7 +11,7 @@ class Message:
         
 class ClickMessage(Message):
     def __init__(self, event):
-        event.stopPropagation();
+        event.stopPropagation()
         
 
 def msg(message_class, params):

src/model/editable.py

@@ -1,5 +1,6 @@
 class Editable:
     def make_copy(self):
+        # makes an internal copy of self
         # delete old copy
         if hasattr(self, "_copy"):
             if self._copy is not None:
@@ -9,6 +10,7 @@ class Editable:
         self._copy = JSON.parse(JSON.stringify(self))
     
     def copy(self):
+        # return internal copy of self
         # check if even initialized
         if hasattr(self, "_copy"):
             return self._copy