Configure Prettier and ESLint rules

[Shane-Walsh]

What's the improvement:

• Define rules for linting which will enforce consistent styling and coding practice.

Priority (tag accordingly): regular (next column) Domain (tag accordingly): frontend Tested on: (platform, OS, browser, version) Branch: configure-linting-rules derived from staging

Work on it

• Derive the branch from staging.
• Tag with ongoing and move the card to ongoing.
• Develop the feature
• Commit your work
• Create a PR and ask for validation. Move the card to staged.
• Ask for validation.
• Close the issue if all the work have been done

Validate

• Check on mobile and on desktop if the feature have been correctly implemented.
• If everything is working fine, move the card toaccepted column.
• If the feature isn't completely implemented, re-open the issue with a comment clearly what the problem is and what is the desired result. Move the card to have issues column.

Please follow https://github.com/Whichost/frontend/wiki/Git-workflow

[Shane-Walsh]

Style Guide:

We are implementing AirBnB's style guide as it is a a very comprehensive set of coding standards.

https://github.com/airbnb/javascript/tree/master/react

Configuration

https://github.com/airbnb/javascript/tree/master/packages/eslint-config-airbnb