Locale-Aware /settings End-Point

[pawel-kow]

https://mailarchive.ietf.org/arch/msg/dconn/hOZxtahAHX9FWRQNNfxzKdSkij4

For browser-based calls the browser would send Accept-Language header to drive the right language.
For server-2-server there is no guidance, to send/forward Accept-Language, so that locale-aware answer would be possible.