Allow configuring text field input options

[balvig]

What

Allows configuring the rendered <textarea> for Field::Text fields, e.g.:

ATTRIBUTE_TYPES = {
  body: Field::Text.with_options(input_options: { rows: 20 }),
}.freeze

Result in:

<textarea rows="20" name="post[body]" id="post_body">...</textarea>

Why

The main use case for this was being able to scale up text areas when needed, f.ex:

Before	After

How

This provides a generic input_options to access all the options provided by text_area, but if that feels like overkill, it could also be hardcoded to only support rows?

[nickcharlton]

This is a lovely improvement, thanks!

I just triggered the CI run, too.