Reorder make_plots for EDMFSpherePlots and make comparison plot column widths equal

[petebachant]

Purpose

Resolves #3915

To-do

• Maybe don't use a comprehension to create var_groups_zt, because it's confusing?

Content

summary_comparison.pdf files will now look like:

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• I have read and checked the items on the review checklist.

[petebachant]

Looking at the buildkite artifacts, the page width seems to be narrower for these than the other two-column plots:

[nefrathenrici]

Thanks! @szy21 or @trontrytel could take a look as well, but the plots and changes look good to me.

[trontrytel]

This is awesome. Thank you so much!

[nefrathenrici]

Could you squash your commits and add this to the merge queue?

[szy21]

Thank you!