Feat/csrf token

[josefinalliende]

Context

We want to add csfr token in the headers of the api client requests in potassium without using the @rails/ujs dependency. ​

What has been done

The util csrf token was added and used in the api index file.

Commit by commit

• Adds the csrf token util
• Uses the new file in the api index and ​includes it in the recipe

• In particular you have to check

  The new util csrf-token and the adittion in the frontend recipe ​

---

Additional info (screenshots, links, sources, etc.)

[josefinalliende]

We already tested that this change worked in : https://github.com/platanus/mok-salud/pull/88