BUG: fix a bug where PlotWindow origin parameter wasn't handled correctly in non-cartesian geometries

[neutrinoceros]

PR Summary

fix #3862 by moving the responsibility of switching to origin="native" from AxisAlignedSlicePlot an AxisAlignedProjectionPlot to PlotWindow. Note that I'm not making any change to OffAxis...Plot classes, because they don't have support for non-cartesian geometries anyway, and they also don't expose the origin keyword argument.

[neutrinoceros]

@matthewturk sorry for pushing again. This should now be ready.

[lumberbot-app]

Owee, I'm MrMeeseeks, Look at me.

There seem to be a conflict, please backport manually. Here are approximate instructions:

1. Checkout backport branch and update it.

git checkout yt-4.0.x
git pull

2. Cherry pick the first parent branch of the this PR on top of the older branch:

git cherry-pick -x -m1 4c3a310a105e4d42bc300d44c3b63f1a5a95e3db

3. You will likely have some merge/cherry-pick conflict here, fix them and commit:

git commit -am "Backport PR #3863: BUG: fix a bug where PlotWindow origin parameter wasn't handled correctly in non-cartesian geometries"

4. Push to a named branch:

git push YOURFORK yt-4.0.x:auto-backport-of-pr-3863-on-yt-4.0.x

5. Create a PR against branch yt-4.0.x, I would have named this PR:

"Backport PR #3863 on branch yt-4.0.x (BUG: fix a bug where PlotWindow origin parameter wasn't handled correctly in non-cartesian geometries)"

And apply the correct labels and milestones.

Congratulations — you did some good work! Hopefully your backport PR will be tested by the continuous integration and merged soon!

Remember to remove the Still Needs Manual Backport label once the PR gets merged.

If these instructions are inaccurate, feel free to suggest an improvement.

[neutrinoceros]

manually backported as #3878