If it is an easy adjustment, I’d suggest allowing the dir attribute to blockquote and other tags. When you write Hebrew, the last period comes out on the right side. Although the browser is smart enough to show rtl characters right-to-left it doesn’t know to attach that last period to the Hebrew.
But until then, we can just add the ‏ (Right Left Mark) at the end. Thus we get:
טקסט שלם ימין לשמאל, כולל הנקודה.
But allowing align=right would complete the picture.