Rails PR to avoid usage of field_error_proc action view config

[nicolas-brousse]

It may be very nice to find a proposal for Rails to avoid having this kind of config in application. And/Or having something configurable from FormBuilder.

    config.action_view.field_error_proc = proc { |html_tag, _instance|
      html_tag.html_safe
    }

cc @Spone

[Spone]

I found the following related issue rails/rails#39522

[thebravoman]

Hey, just wanted to share that I am thinking on an approach to have the logic in the FormBuilder and I have proposed an implementation.

As per Rails Contribution guides I would like to first get feedback before opening a new PR. Let me know your thoughts in https://discuss.rubyonrails.org/t/feature-allow-for-override-of-field-error-proc-in-the-formbuilder-could-prepare-pr-if-the-approach-is-reasonable/79843

[Spone]

Maybe we could start by documenting this in the README?