Add npm test script for playwright testing #816

	name: CI

	on:
	push:
	branches: [master]
	pull_request:
	branches: [master]

	jobs:
	verify_files:
	name: Verify Files
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v2
	with:
	fetch-depth: 0
	- name: Setup Node
	uses: actions/setup-node@v2
	with:
	node-version: '18.x'
	cache: 'npm'
	- name: Install Packages
	run: npm ci
	- name: Install Demo Packages
	run: cd demo && npm i
	- name: Lint Files
	run: npm run lint
	- name: Build Files
	run: npm run build
	- name: Install Playwright Browsers
	run: npx playwright install --with-deps
	- name: Tests
	run: npm run test
	- uses: actions/upload-artifact@v4
	if: ${{ !cancelled() }}
	with:
	name: playwright-report
	path: playwright-report/
	retention-days: 1
	- name: Typecheck
	run: npm run typecheck

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