The instances where these rendering would disrupt the consistency of the UI and potentially its comprehension: https://www.figma.com/file/VVjoLHG6X74lXmh6CN3r7H/Swaps?node-id=1247%3A0
cc @jakehaugen -- what're the guidelines we should use?

Note - this might break consistency from how we render numbers across the mobile app. We should improve how we render numbers across the app (including internationalization), but that is out of scope for this issue. cc @wachunei