[akhuoa]

This pull request is part of updates to formatting where the auto-generated CHANGELOG.md file has been formatted and is also showing formatting failures.

1. Add .prettierignore to exclude autogenerated files #363
2. Add .prettierignore to exclude autogenerated files map-sidebar#258
3. Add .prettierignore to exclude autogenerated files map-utilities#98
4. Add .prettierignore to exclude autogenerated files mapcore-gallery#20
5. Add .prettierignore to exclude autogenerated files plotvuer#68
6. Add .prettierignore to exclude autogenerated files scaffoldvuer#201
7. Add .prettierignore to exclude autogenerated files simulationvuer#141
8. Add .prettierignore to exclude autogenerated files svg-sprite#22

[akhuoa]

There are some test failures because of updated staging maps.

[alan-wu]

Looks good to me, thanks.