Implement ArrayInput input type for SimpleForm
user
```ruby
# frozen_string_literal: true
# https://railsguides.net/simple-form-array-text-input/
# https://tenforward.consulting/blog/integrating-an-array-column-in-rails-with-simple-form
class ArrayInput < SimpleForm::Inputs::StringInput
  def input(wrapper_options)
    input_html_options[:type] ||= input_type
    existing_values = Array(object.public_send(attribute_name)).map do |array_el|
      @builder.text_field(nil, input_html_options.merge(value: array_el, name: "#{object_name}[#{attribute_name}][]"))
    end
    if existing_values.empty?
      existing_values.push @builder.text_field(nil, input_html_options.merge(value: nil, name: "#{object_name}[#{attribute_name}][]"))
    end
    existing_values.join.html_safe
  end

  def input_type
    :text
  end
end
```
assistant