[add] support for displaying PDF file #1765

	name: Code Quality

	on:
	pull_request:
	push:
	branches:
	- 1.0
	- 1.1
	- 1.2
	- develop

	jobs:
	codeQuality:
	runs-on: ubuntu-latest
	name: PHP
	steps:
	- name: Cancel previous incomplete runs
	uses: styfle/[email protected]
	with:
	access_token: ${{ github.token }}

	- name: Checkout changes
	uses: actions/checkout@v2
	with:
	fetch-depth: 0

	- name: Install PHP and PHP Code Sniffer
	uses: shivammathur/setup-php@v2
	with:
	php-version: 8.0
	extensions: curl, fileinfo, gd, mbstring, openssl, pdo, pdo_sqlite, sqlite3, xml, zip
	tools: phpcs

	- name: Run code quality checks (on push)
	if: github.event_name == 'push'
	run: ./.github/workflows/utilities/phpcs-push ${{ github.sha }}

	- name: Run code quality checks (on pull request)
	if: github.event_name == 'pull_request'
	run: ./.github/workflows/utilities/phpcs-pr ${{ github.base_ref }}
	codeQualityJS:
	runs-on: ubuntu-latest
	name: JavaScript
	steps:
	- name: Checkout changes
	uses: actions/checkout@v2
	with:
	fetch-depth: 0

	- name: Install Node
	uses: actions/setup-node@v1
	with:
	node-version: 12

	- name: Install Node dependencies for System Module
	working-directory: ./modules/system
	run: npm install

	- name: Run code quality checks on System Module
	working-directory: ./modules/system
	run: npx eslint .

	- name: Install Node dependencies for Backend Module
	working-directory: ./modules/backend
	run: npm install

	- name: Run code quality checks on Backend Module
	working-directory: ./modules/backend
	run: npx eslint .

Provide feedback