Make action forms better

[yorsant]

Feature

• Create a stimulus controller that disables the submit form until all required fields have content.
• Associate fields with errors coming from the backend and render errors before calling the handle method (as suggested by Paul Bob on Discord).

Current workarounds

def handle...
  if some_field.blank?
    error "Something happened"
    keep_modal_open
    return
  end
end

Additional context

https://discord.com/channels/740892036978442260/1226288821780484137

[adrianthedev]

Maybe use something like this?
https://github.com/marcoroth/formulus