chore: add eslint config and prettier

[gary-van-woerkens]

Ma config .vscode/settings.json:

{
  "editor.formatOnSave": false,
  "eslint.packageManager": "yarn",
  "eslint.validate": ["javascript", "typescript", "typescriptreact"],
  "editor.codeActionsOnSave": {
    "source.fixAll.eslint": true
  },
}

[sonarcloud[bot]]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
1 Code Smell

No Coverage information
0.0% Duplication

[socket-security[bot]]

New dependencies detected. Learn more about Socket for GitHub ↗︎

Packages	Version	New capabilities	Transitives	Size	Publisher
eslint-plugin-prettier	5.0.0	None	+2	86.4 kB	jounqin

[github-actions[bot]]

🎉 Deployment for commit 86cfa4dda63488622bcb06bca91cd194eb0b4daf :

Ingresses

- 🚀 [https://www-eslint-prettier.ovh.fabrique.social.gouv.fr/](https://www-eslint-prettier.ovh.fabrique.social.gouv.fr/)

Docker images

- 📦 docker pull harbor.fabrique.social.gouv.fr/fabrique/www/app:sha-86cfa4dda63488622bcb06bca91cd194eb0b4daf

Debug

- [📕 Loki logs for namespace www-eslint-prettier](https://grafana.fabrique.social.gouv.fr/explore?orgId=1&left=%5B%22now-6h%22,%22now%22,%22Loki%22,%7B%22expr%22:%22%7Bnamespace%3D%5C%22www-eslint-prettier%5C%22%7D%22%7D%5D) - [📈 Pods monitoring for namespace www-eslint-prettier](https://grafana.fabrique.social.gouv.fr/d/85a562078cdf77779eaa1add43ccec1e/kubernetes-compute-resources-namespace-pods?orgId=1&refresh=10s&var-datasource=default&var-cluster=dev2&var-namespace=www-eslint-prettier) - [📈 Workloads monitoring for namespace www-eslint-prettier](https://grafana.fabrique.social.gouv.fr/d/a87fb0d919ec0ea5f6543124e16c42a5/kubernetes-compute-resources-namespace-workloads?orgId=1&refresh=10s&var-datasource=default&var-cluster=dev2&var-namespace=www-eslint-prettier&var-type=deployment) - [👮‍♂️ Namespace rancher www-eslint-prettier](https://rancher.fabrique.social.gouv.fr/dashboard/c/c-m-97jxtvnv/explorer/namespace/www-eslint-prettier) - [👮‍♂️ Deployment app](https://rancher.fabrique.social.gouv.fr/dashboard/c/c-m-97jxtvnv/explorer/apps.deployment/www-eslint-prettier/app)

[github-advanced-security[bot]]

This pull request sets up GitHub code scanning for this repository. Once the scans have completed and the checks have passed, the analysis results for this pull request branch will appear on this overview. Once you merge this pull request, the 'Security' tab will show more code scanning analysis results (for example, for the default branch). Depending on your configuration and choice of analysis tool, future pull requests will be annotated with code scanning analysis results. For more information about GitHub code scanning, check out the documentation.

[SocialGroovyBot]

:tada: This PR is included in version 2.40.0-beta.3 :tada:

The release is available on GitHub release

Your semantic-release bot :package::rocket: