- show modal depending on the type of error we got while processing.

update type and handling of goBack icon. Upon click go to the root of the bottomTabs 'screen with payment options' while resetting the history.

add mutation for checking transaction status after the browser is dismissed. the check is done 3 times unless success or failed is returned from the response.
Change the flow logic of mutations to make it more predictable.

when the credentials are good. make request to retrieve user informations before navigating to the home page for authenticated user.

- 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