Add new zealand dollars

[nathan-may]

Before asking for reviews, here is a check list of the most common things you might need to consider:

• updating the Changelog
• writing unit tests
• checking if your changes affect other coins or tokens in unintended ways
• testing on multiple environments (Qt, Android, ...)
• having an AI review your changes

closes #3444

I need to check the contributing guide, hence the draft PR. Also I think that we will need to whitelist nzd, as I receive a 400 when trying to get rates (maybe @thisconnect can do this?)

I'll test this on Android too

[thisconnect]

Thank you for your PR, yes we need to allow nzd..

In the past we were cautious with adding new fiat currencies, but
afaik we didn't have any issues in a long time... (months/years?) for this reason I strongly think we should add fiat currencies that our users request.

@benma @Beerosagos ack to add new fiat?

[nathan-may]

Thank you for your PR, yes we need to allow nzd..

In the past we were cautious with adding new fiat currencies, but afaik we didn't have any issues in a long time... (months/years?) for this reason I strongly think we should add fiat currencies that our users request.

@benma @Beerosagos ack to add new fiat?

You're welcome 🙇‍♂️ and thanks for the help with tagging in people.

Looks like you added support for czk and pln in June and all good so far right? And agree, great to increase support

[benma]

ACK - @thisconnect please review this PR and feel free to merge when ready.

[thisconnect]

@nathan-may we are updating the proxy to allow NZD

In the meantime please squash all commits into one commit as this should be 1 change (one logical change so it shows everything related in git blame)
https://github.com/BitBoxSwiss/bitbox-wallet-app/blob/master/CONTRIBUTING.md#git-commits

[nathan-may]

@nathan-may we are updating the proxy to allow NZD

In the meantime please squash all commits into one commit as this should be 1 change (one logical change so it shows everything related in git blame) https://github.com/BitBoxSwiss/bitbox-wallet-app/blob/master/CONTRIBUTING.md#git-commits

Cheers. I have squashed everything, hopefully ready to go now.

[thisconnect]

thank you tested LGTM