fix typescript and eslint errors #172

	# Workflow that lint and build with typescript the code.
	name: ESLint & Typescript

	# Triggered on very branch at every push
	on: [push]

	jobs:
	typescript:
	runs-on: ubuntu-latest
	steps:
	# [1] checkout repo.
	- uses: actions/checkout@v2

	# [2] get node.
	- name: Use Node.js
	uses: actions/setup-node@v1
	with:
	node-version: '18.14.2'

	# [3] install dependencies.
	- name: Install dependencies
	run: yarn

	# [4] test typescript.
	- name: Run typescript
	run: yarn typescript

	lint:
	runs-on: ubuntu-latest
	steps:
	# [1] checkout repo.
	- uses: actions/checkout@v2

	# [2] get node.
	- name: Use Node.js
	uses: actions/setup-node@v1
	with:
	node-version: '18.14.2'

	# [3] install dependencies.
	- name: Install dependencies
	run: yarn

	# [4] test.
	- name: Run eslint
	run: yarn lint

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