fix: Set default country in kosma popup based on selected company

[marination]

Depends on https://github.com/alyf-de/banking-admin/pull/28

The country of the selected company will be preselected in the Kosma popup:

If the country is not supported (eg. An indian company is chosen), it will default to no preselection. Kosma decides the default:

What's done:

• Pass 'company' from banking_settings.js to the API that calls to banking admin
• Pre-commit formatting

[barredterra]

I could imagine, say, an Indian company having a German bank account (among others). When the company's country is not available, can we just not prefill anything instead of raising an error?

[marination]

Good point. I'll default to not sending any country if the country is not in the list of approved country codes