fix: remove contact info, use international format

[barredterra]

• it is not customary, to use contact information such as phone number in the address
• for international letters, city and country should be upper case: https://www.deutschepost.de/content/dam/dpag/images/B_b/Briefe_ins_Ausland/downloads/dp-brief-international-handlingbroschuere-072019.pdf#page=15

An address within Germany will look like this:

Teststraße 1
01234 Berlin

An international address will look like this:

1 Rue Test
01234 PARIS
FRANCE