Clean up workflow and misc #17

	# This file was adapted from workflow files from the SE-EDU Brownfield
	# Project: https://github.com/nus-cs2103-AY2324S1/tp and the CATcher Project:
	# https://github.com/CATcher-org/CATcher

	name: CI

	on: [push, pull_request]

	jobs:
	build:
	strategy:
	matrix:
	platform: [ubuntu-latest, macos-latest, windows-latest]
	node-version: [14.x]
	runs-on: ${{ matrix.platform }}

	steps:
	- name: Set up repository
	uses: actions/checkout@main

	- name: Set up repository
	uses: actions/checkout@main
	with:
	ref: main

	- name: Merge to main
	run: git checkout --progress --force ${{ github.sha }}

	- name: Run repository-wide tests
	if: runner.os == 'Linux'
	working-directory: ${{ github.workspace }}/.github
	run: ./run-checks.sh

	- uses: actions/checkout@v2
	- name: Use Node.js ${{ matrix.node-version }}
	uses: actions/setup-node@v1
	with:
	node-version: ${{ matrix.node-version }}

	- name: Install dependencies
	run: npm install

	- name: Run ESLint
	run: npm run lint

	- name: Run code tests
	run: npm run test -- "--coverage"

	- name: Upload coverage reports to Codecov
	uses: codecov/codecov-action@v3
	env:
	CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

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