[i18n] Update German strings (#14182)
[i18n] Update German strings (#14182)

i18n: Update German strings
4thParty/Rocket.Chat,VoiSmart/Rocket.Chat,subesokun/Rocket.Chat,VoiSmart/Rocket.Chat,inoio/Rocket.Chat,Sing-Li/Rocket.Chat,4thParty/Rocket.Chat,Sing-Li/Rocket.Chat,inoio/Rocket.Chat,Sing-Li/Rocket.Chat,4thParty/Rocket.Chat,subesokun/Rocket.Chat,4thParty/Rocket.Chat,Sing-Li/Rocket.Chat,subesokun/Rocket.Chat,subesokun/Rocket.Chat,inoio/Rocket.Chat,VoiSmart/Rocket.Chat