getUserInformations request to retrieve the relevant informations about user. check IuserInformations type for the response format.

- manually rounding the white container around the input amount
- remove the balance container container
- add 'montant à payé' label and its amount right below it.
- continuously update the total in the header part when changed

remove the wrapper around the image. the styling of the container will be left to the component that need to render it