[WS-2388]: Consume x-id-oidc-signedin header in Simorgh SSR and set initialIsSignedIn#13951

LukasFrm wants to merge 2 commits intolatestbbc/simorgh:latestfrom

WS-2388-consume-x-id-oidc-signedin-header-in-simorgh-ssr-and-set-initial-initialissignedinbbc/simorgh:WS-2388-consume-x-id-oidc-signedin-header-in-simorgh-ssr-and-set-initial-initialissignedinCopy head branch name to clipboard