REMS-292 adding linting and CI workflow to repository

[rdingwell]

Describe your changes

This PR adds linting via eslint and prettier to the repository, adds npm scripts in package json to run those utilities and adds a github ci workflow to run linting and tests on pushes and pull requests.

Issue ticket number and Jira link

REMS 292

Checklist before requesting a review

• I have performed a self-review of my code
• Ensure the target / base branch for any feature PR is set to dev not main (the only exception to this is releases from dev and hotfix branches)

Checklist for conducting a review

• Review the code changes and make sure they all make sense and are necessary.
• Pull the PR branch locally and test by running through workflow and making sure everything works as it is supposed to.

Workflow

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