Add 404 page

[samuel-vergara-leon]

Explication

Add the view for the 404 error. The user will be redirected to this view when requesting a resource that does not exist

Checklist

• [ ] Add a error 404 route at React Router
• [ ] Add a empty or basic file to the 404 view

[arodriguezl9302]

regardless of the effort estimate I want to be assigned to this task