[Curreny] Option to hide the currency

[andrew-boyd]

Discussed in https://github.com/orgs/formkit/discussions/1409

^{Originally posted by darthf1 June 10, 2024}
I know, it doesn't make sense to remove the currency from the currency input. But I really like the number formatting part of this component. In my project, I have currently have two currency components:

• One displaying a money value with the currency, using formkits currency component.
• One displaying a money value without the currency, using vue-currency-input.

It would be great if I can use formkits currency component for both cases.

If I omit the currency prop (or set it to undefined, it defaults to usd. Maybe a false value can be allowed, which hides the currency from the output?