Add missing german translation key
Add missing german translation key

mairdl/jabref,motokito/jabref,zellerdev/jabref,tobiasdiez/jabref,grimes2/jabref,oscargus/jabref,sauliusg/jabref,tobiasdiez/jabref,JabRef/jabref,grimes2/jabref,Braunch/jabref,zellerdev/jabref,JabRef/jabref,motokito/jabref,jhshinn/jabref,jhshinn/jabref,motokito/jabref,shitikanth/jabref,Mr-DLib/jabref,Mr-DLib/jabref,ayanai1/jabref,motokito/jabref,ayanai1/jabref,tobiasdiez/jabref,Siedlerchr/jabref,bartsch-dev/jabref,jhshinn/jabref,shitikanth/jabref,oscargus/jabref,shitikanth/jabref,Siedlerchr/jabref,oscargus/jabref,Siedlerchr/jabref,obraliar/jabref,bartsch-dev/jabref,grimes2/jabref,obraliar/jabref,grimes2/jabref,mredaelli/jabref,zellerdev/jabref,tobiasdiez/jabref,tschechlovdev/jabref,shitikanth/jabref,JabRef/jabref,bartsch-dev/jabref,bartsch-dev/jabref,Braunch/jabref,mredaelli/jabref,ayanai1/jabref,bartsch-dev/jabref,mairdl/jabref,mredaelli/jabref,grimes2/jabref,oscargus/jabref,mredaelli/jabref,zellerdev/jabref,Mr-DLib/jabref,sauliusg/jabref,ayanai1/jabref,obraliar/jabref,Braunch/jabref,sauliusg/jabref,obraliar/jabref,Braunch/jabref,mairdl/jabref,Siedlerchr/jabref,shitikanth/jabref,mairdl/jabref,tschechlovdev/jabref,obraliar/jabref,Mr-DLib/jabref,Braunch/jabref,jhshinn/jabref,ayanai1/jabref,motokito/jabref,zellerdev/jabref,sauliusg/jabref,Mr-DLib/jabref,oscargus/jabref,jhshinn/jabref,JabRef/jabref,mredaelli/jabref,mairdl/jabref,tschechlovdev/jabref,tschechlovdev/jabref,tschechlovdev/jabref