Add cookie to react lib

[paribaker]

Cookies are needed for csrf I've seen us use this one

1. create utils/cookie.ts

export default function getCookie(cname: string): string {
  const name = cname + '='
  const decodedCookie = decodeURIComponent(document.cookie)
  const ca = decodedCookie.split(';')
  for (let i = 0; i < ca.length; i++) {
    let c = ca[i]
    while (c.charAt(0) === ' ') {
      c = c.substring(1)
    }
    if (c.indexOf(name) === 0) {
      return c.substring(name.length, c.length)
    }
  }
  return ''
}

2. Update services/axios-instance.ts to add the cookie to the header

import getCookie from '../utils/cookie'


const csrfToken = getCookie('csrftoken')
const axiosInstance = axios.create({
  //baseUrl will be determined by the server proxy in vite.config.js
  headers: {
    'Content-Type': 'application/json',
    'X-CSRFToken': csrfToken,
  },

[villagrat]

React client code has been merged to main with this on this PR