New Strings for Risikobegegnung mit niedrigem Risiko (EXPOSUREAPP-2462) (#1106)

* + new strings

* let the app not crash on other languages than DE

* values for lint and tests

* made bad test a comment

* removed unnecessary strings

* more string fixes

Co-authored-by: Jakob Möller <jakob.moeller@sap.com>
Co-authored-by: Luka Harambasic <luka.harambasic@sap.com>