Clean up plots after plotly to matplotlib transition

[georgemccabe]

There are some differences identified between the old and new versions of the plots.

@hertneky created slides that show before/after images and a list of differences between them:
https://docs.google.com/presentation/d/1ral4_hh3uNdKS5spDVSWC-AMy6wVpWVW9ypod0rMdJg/edit?slide=id.g3d71313ec34_0_0#slide=id.g3d71313ec34_0_0

More differences can be added to this issue as they are discovered

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Review differences and decide if they warrant any fixes to the code or if they are acceptable differences.

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[hertneky]

The batch xml files used to create the plots can be found here: dakota:/d2/personal/hertneky/test/forGeorge
Run using command: /d3/projects/METViewer/src/apps/METviewer/bin/mv_batch.sh 2m_tmp_ss_00utc.xml (for example)