You need to add the following two rules. The first one is needed since we're using React v17+ and therefore not importing React anymore, and we need the second one too as we are not really using prop-types very consistently (we will eventually refactor to TS so we're not bothering with that anymore):

rules: {
  "react/react-in-jsx-scope": "off",
  "react/prop-types": "off"
}

Add as well:

settings: {
  react: {
    version: "detect",
  },
},

to avoid getting a warning when running eslint

Should be something like this:

"lint-staged": {
    "*.{ts,tsx,js,jsx}": "eslint --cache --fix",
    "*.{ts,tsx,js,jsx,css,less,md,html}": "prettier --write"
  }

since we want eslint to check js,jsx files too and prettier to format ts,tsx,jsx,less,html files as well. Also .eslintcache file should be added to .gitignore.