Make Payment Chain and Payment Currency required fields on Create Invoice Form. Don't allow defaults.

[MantisClone]

Problem

It is possible to create requests without selecting chain and currency (it uses the first ones on the list)

Considerations

Was this already fixed in #141?

Source

https://miro.com/app/board/uXjVK_t9NEA=/?moveToWidget=3458764603763794984&cot=14

[MantisClone]

Fixed by #141