Migrate OnlyOffice server link to kas k8s
Server used until now: https://onlyoffice.felder-edv.at/ maintained by @armin.felder
Seems to have now restricted communication back to nextcloud https://git.fairkom.net/clients/brandkontrolle/issues/10
Since two days we have our own OO document server https://git.fairkom.net/fairapps/portfolio/issues/7#note_19465
New address has been set in NC Settings: https://docs.fairkom.net/ and will be set in other customer NCs.