Remove section about hostname change
Remove section about hostname change

Changing Hostname in the .env and in the banner might lead to various breakages of the setup — so don’t advise it to users in the FAQ.

Co-authored-by: Thomas Sänger <5f50a84c1fa3bcff146405017f36aec1a10a9e38@gecko.space>
kaiyou/freeposte.io,kaiyou/freeposte.io,kaiyou/freeposte.io,kaiyou/freeposte.io