bugfix: BarGraph drawing numbers on the y axis even when "y_axis.include_numbers" is False

[Tmodrzyk]

Overview: What does this pull request change?

Numbers were always drawn without checking the value of y_axis.include_numbers.
Numbers are now drawn on the y_axis only if y_axis.include_numbers is True.

Motivation and Explanation: Why and how do your changes improve the library?

I think this is the expected behavior, otherwise the user can't hide these numbers.

Links to added or changed documentation pages

No changes in documentation required.

Reviewer Checklist

• The PR title is descriptive enough for the changelog, and the PR is labeled correctly
• If applicable: newly added non-private functions and classes have a docstring including a short summary and a PARAMETERS section
• If applicable: newly added functions and classes are tested

[chopan050]

Thanks for noticing this bug! Indeed, because Axes by default don't include numbers, it makes sense for BarChart, a subclass of Axes, to not have numbers by default as well.

I left a comment on your change.

Apart from that comment, I would need you to please review the tests/test_graphical_units/test_probability.py. The graphical unit tests defined there are failing, because BarChart no longer contains numbers by default.

• It makes sense for most of them to have numbers in the Y axis, so maybe you could pass y_axis_config={"include_numbers": True} as an extra argument to them.
• The first test, test_default_chart, is more problematic, because now a "default chart" has no numbers. IMO, the best approach would be to replace it with two tests, test_default_version_chart and test_numbered_version_chart, where the latter has numbers and the former doesn't. However, you would have to regenerate the graphical unit tests for that to work: see https://docs.manim.community/en/stable/contributing/testing.html#graphical-unit-test