Add javascript linter

[cannawen]

• [x] Define rules https://eslint-config.netlify.app/
• [x] Have linter automatically run (pre-commit hook?)

[cannawen]

OK, so this is why it was so hard to get eslint to format our code. It wasn't intended for formatting. https://typescript-eslint.io/linting/troubleshooting/formatting/

Reopening issue so we can format the "proper" way

[cannawen]

Re-opening. Need to add back certain rules

• export default { foo: foo } should collapse into export default { foo }
• Alphabetize imports
• eqeqeq

[cannawen]

Both prettier and eslint are working now.

We are not using eslint to auto --fix anything but it is warning us in the IDE or when we run npm run lint so this is good enough. Still a bit confused on why prettier extension in .eslintrc disables all our yellow squiggles in the IDE, but whatever.