Fix wrong variable name for new_resource I18n keys in locales

Created by: dmshvetsov

This is how new_resource translation is used:

  <%# app/views/administrate/application/index.html.erb %>
  <div>
    <%= link_to(
      t(
        "administrate.actions.new_resource",
        name: display_resource_name(page.resource_name).titleize.downcase
      ),
      [:new, namespace, page.resource_path],
      class: "button",
    ) if valid_action?(:new) && show_action?(:new, new_resource) %>
  </div>

we are passing name variable instead of resource.

This PR fix the problem.