application.py

For all other methods the beginner's rule of thumb is "when in doubt,
call `super().methodname()` when overriding, but for draw it gives a
cryptic @abstractmethod error:

File "/flash/sys/st3m/ui/view.py", line 163, in draw
TypeError: function takes 0 positional arguments but 2 were given

This is not very beginner friendly, so we're providing a NOP default.