Multilanguage support

[MartinMeise]

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When I first opened the Web User Inferface it was all in englisch. So far so good. But localized would be even better.

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This Website describes in detail how to set up such a website: https://medium.com/@nohanabil/building-a-multilingual-static-website-a-step-by-step-guide-7af238cc8505

I could do the german translation.:
Garagentor
Tor geschlossen
Auf
Halb
Lüften
Stop
Zu
Licht
Basis Konfiguration einblenden
WLAN
WLAN Access Point aktivieren
WLAN SSID
WLAN Passwort
...
Speichern und Neustarten
Erweiterte Konfiguration

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