Renders a form textarea.
:id
- The id to use for the textarea :name
- The name to use for the textarea :value
- The value to pre-populate the textarea with :field
- A form field struct to build the textarea from :class
- Additional CSS classes to apply :rows
- Number of visible text lines (passed through as rest) :placeholder
- Placeholder text (passed through as rest) :disabled
- Whether the textarea is disabled (passed through as rest) :required
- Whether the textarea is required (passed through as rest)