module DeviseI18n::ViewHelpers

def devise_i18n_fix_model_name_case(text, i18n_key:)

Custom logic to fix case for different strings and languages. 
def devise_i18n_fix_model_name_case(text, i18n_key:)
  # In general, on errors.messages.not_saved, downcase, but German nouns are always capitalized.
  return text.downcase if i18n_key == 'errors.messages.not_saved' && I18n.locale.to_s != 'de'
  text
end