Improve form errors style #103

https://ombulabs.atlassian.net/browse/DT-261

Branch/Commit:

Main branch

Describe the feature:

As a user, if the creation of a Story fails, I want to see the error messages next to each field with an error.

Problem:

Currently, it looks outdated with a list of all the errors at the top, colors don't match the Point palette, style is kinda broken (the vignette of the list is outside the container)

Mockups:

Something like this maybe? using red-ish color from ombu logo

I will abide by the code of conduct