DX: Prettier Integration

[amattu2]

Overview

This PR will focus on introducing the new Prettier integration and Eslint rule reconfiguring. After merging this PR, a separate PR will be created to FIX the linting issues. We'll do it separately to make it easy to revert if necessary.

Note

It may be necessary to manually run npm run prepare to initialize Husky if the repo is already cloned locally

To-Do

Action items for this PR:

• Target PMVP M1 branch (no longer MVP-2 M3)
• migrate workflow changes to separate files as needed (e.g. prettier separate)
• Remove prop-types usage in layouts/index.tsx
• Enforce double quotes? Prettier will enforce this
• Do we want to enable no-use-before-define? Requires lots of manual fixes
• Add base prettier config file

Action items after merging:

• npm run lint:fix
• Remove react-router import and replace with react-router-dom in router.tsx (see errors)
• Fix use before define
• Fix redundant type constituents
• Fix unescaped entities
• Fix unreachable code
• 'react-transition-group' not listed in project deps
• 'graphql-tag' not listed in project deps

Change Details (Specifics)

• Setup Prettier w/Eslint integration
• Setup Husky and precommit hook
• Update project README.md with coverage badge and Husky info

Related Ticket(s)

N/A

[amattu2]

Per discussion – Merging AS-IS and will address all of the issues in a separate PR. The 3.0.0 branch will be broken temporarily. Latest build stable frontend build is tagged at 3.0.0.292