Add Currency Selection Option to Revenue Analytics Dashboard

Right now, our dashboard shows all numbers in one currency(USD), which makes it hard for us to understand our business at a glance. We'd like the ability to view our analytics and transaction amounts in our preferred currency so it's easier to track our performance and reconcile with our accounting.

What We Need:

- Let us choose our currency from a dropdown menu - Show all our numbers in that currency - Remember our choice so we don't have to pick it every time

Why This Matters:

Being able to see our data in our local currency makes it way simpler to manage our business and understand our real performance without having to convert everything manually.