title: Textfileld doesn't support Persian language inside Bottomshet
body: <p>I am writing an app using Flutter in Persian (locale fa) and I think the Bottomshet widget does not support it well. Everything about English is fine but when I type Persian the text is not rtl.
  Thanks a lot.</p>
  <p><a href="https://i.stack.imgur.com/vJiCEl.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/vJiCEl.png" alt="enter image description here" /></a></p>