Add workflow for jest test & lint #1

	name: Application testing
	on:
	push:
	workflow_dispatch:
	jobs:
	unit-tests:
	name: Unit tests
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v2

	- name: Setup Node
	uses: actions/setup-node@v1
	with:
	node-version: "16.14.0"

	- name: Install yarn
	run: npm install -g yarn

	- name: Get yarn cache directory path
	id: yarn-cache-dir-path
	run: echo "::set-output name=dir::$(yarn cache dir)"

	- name: Cache yarn dependencies
	uses: actions/cache@v2
	id: yarn-cache
	with:
	path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
	key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
	restore-keys: \|
	${{ runner.os }}-yarn-

	- name: Install dependencies
	run: yarn install --frozen-lockfile --silent

	- name: Install translations
	run: yarn localize

	- name: Run jest tests
	run: yarn test

	- name: Run typescript tests
	run: npx tsc

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