Previously, the data used by `update_scrollbars()` and `_update_dimensions()` in their calculations depended on each other, which caused some problems.
Now, the calculation of `child_max_size` is put into `get_minimum_size()`, as the containers call `update_minimum_size()` before calling `queue_sort()`.
Make the semantics of variable/function names more clear.
Co-authored-by: Aaron Record <aaronjrecord@gmail.com>
a7eecc61ad