Show trade fee in both home currency and trade currency
When creating an offer, the trade fee in XMR is also shown (in brackets) in your preferred currency... GBP in this example, but the trade currency is in THB .... and people do operate in multiple currencies.

Can we display the trade fee in both the preferred currency and the trade currency (in brackets) ..  

![image](https://github.com/user-attachments/assets/64746180-4fc8-4a18-bf75-00e28126a087)
