Set "type": "module" in package.json and fix everything changed by that

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 14.28571% with 6 lines in your changes missing coverage. Please review.

Project coverage is 32.84%. Comparing base (2143f28) to head (253239b).

Files	Patch %	Lines
...tViewer/components/RadiologcalConventionToggle.tsx	14.28%	6 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1235 +/- ## ========================================== + Coverage 27.07% 32.84% +5.76% ========================================== Files 194 194 Lines 6400 6400 Branches 1330 1330 ========================================== + Hits 1733 2102 +369 + Misses 4549 4170 -379 - Partials 118 128 +10 ``` | [Flag](https://app.codecov.io/gh/FNNDSC/ChRIS_ui/pull/1235/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=FNNDSC) | Coverage Δ | | |---|---|---| | [e2etests-local](https://app.codecov.io/gh/FNNDSC/ChRIS_ui/pull/1235/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=FNNDSC) | `27.07% <14.28%> (ø)` | | | [e2etests-public](https://app.codecov.io/gh/FNNDSC/ChRIS_ui/pull/1235/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=FNNDSC) | `27.68% <14.28%> (?)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=FNNDSC#carryforward-flags-in-the-pull-request-comment) to find out more.

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