email body as text area

[AntonMartyniuk]

Make text body field as text area

[yanniboi]

Almost there! I tested with simplytest.me and found that the email message still wasn't a textarea. After looking it turns out that the problem was that $formElement is a protected variable so ContextFormTrait cant use it directly.

I have create a fix for this here: https://github.com/AntonMartyniuk/rules/pull/2