🪲 The variable list does not appear in the output after level 5

[boryanagoncharenko]

Describe the bug
After the execution of a program we display a list will all variables used in the program in the output pane. This is how it looks:

However, this variable list is not displayed after level 5. Probably the reason is that in level 6 we start wrapping all variables in Value().

Steps to reproduce
Open level 6 and execute the following program. Notice that after it is executed, there is no variable button or list displayed:

a is 15
print a