Make UI support right-to-left languages

[danfinlay]

What problem are you trying to solve?
Some languages, like Arabic (#3531), Hebrew, and Farsi (#5273) read from right to left. This affects not only text direction, but the general orientation of all UI elements: the side of a "back" arrow, the direction of that arrow, basically the whole UI would ideally be flipped vertically to support these languages.

Describe the solution you'd like
Ideally MetaMask auto-detects when a right-to-left language is selected, and orients its elements correctly, in an easily reusable way across the UI.

[brad-decker]

#7072 -- believe this was resolved when this merged. @Gudahtt can you confirm and close issue if you agree?

[Gudahtt]

I agree - this has been implemented, and should still work as far as I know.

I'm sure there are RTL mistakes here and there still, but we can open individual issues for any such mistakes we find.