🔪 Remove invalid id characters

Author: T4rk1n

dash/dash.py

@@ -674,7 +674,7 @@ def _validate_callback(self, output, inputs, state):
                             name.lower(), str(arg), name
                         ))
 
-                invalid_characters = ['.', ':', '[', ']']
+                invalid_characters = ['.']
                 if any(x in arg.component_id for x in invalid_characters):
                     raise exceptions.InvalidComponentIdError('''The element
                     `{}` contains {} in its ID.