Fix test suite

[joshuaellis]

Why

Fix the test suite.
resolves #1353 (hopefully)

What

Rejigged the jest.config.js, I decided to use the great library ts-jest instead of esbuild-jest. Which helped massively. also upgraded the version for jest, @testing-library/react, @testing-library/jest-dom.

Also added "esModuleInterop": true, to the tsconfig...

Thoughts for later: use a tsconfig.common.json to consolidate some settings.

Checklist

• Ready to be merged

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[joshuaellis]

I'm at a real stump right now, using https://github.com/nektos/act I can run the action locally but it still throws the error. I've raised an issue in Typescript since the Discord help channels did not yield any results – microsoft/TypeScript#43373

[joshuaellis]

@creativiii, @CodyJasonBennett & @skylineproject I can merge this if you want (the tests do run locally and complete successfully) if that's helpful for you all? Or I can keep this in a branch till the CI issue is solved, let me know.

[danielberndt]

Great! Can confirm that tests are now properly running for me 👍

[joshuaellis]

Awesome @danielberndt, we even have coverage checks, in an ideal world I'd like them all to be 80+ so when people contribute and bump that up I'll be bumping the bar up too!