[v2][Admin UI] Currency wrongly displayed after changing channel currency

[seminarian]

Describe the bug
If you have products with prices defined in a channel and then you change the currency of the channel:
(In screenshots I changed currency from EUR to $

• The price is still shown with the old currency on the Product Variants page:
  

• The price is shown in the new currency on the Manage Variants page:
  

Is this just a visual error on the Product Variants page? Should that also just show $ here?

To Reproduce
Steps to reproduce the behavior:

1. Go to Admin UI
2. Create a product
3. Go to channel settings and change the channel currency
4. Go to Product details in Admin UI, on the Variants tab see the old currency listed
5. Click on Manage variants and see the new currency used there.

Expected behavior
After changing the currency we would expect the new currency to be shown on all possible places in the channel.

Environment (please complete the following information):

• @vendure/core version: 2.0.0-beta.2
• Nodejs version: 16.9
• Database (mysql/postgres etc): Postgres