Update Eslint Section

[MatthysDev]

Describe the bug, the incomprehension

https://davidl.fr/workshop/challenges/ecosystem-02

With the new version of Eslint (9.0.0) the command line change

"lint": "eslint --ignore-path .gitignore --ext .js,.ts,.tsx .",

doesn't work anymore

Or we should change the config name to make it works

https://eslint.org/docs/latest/use/migrate-to-9.0.0#-new-default-config-format-eslintconfigjs