* move setLang() to a root layout

* fix: findLang only returns acceptable languages
* fix: fallback to use header x-lang if we haven't setLang yet
* fix: languageSchema, allow uppercase

Approved-by: Linus Flood

types/components/header/mobileMenu.ts

@@ -1,4 +1,3 @@
-import type { LanguageSwitcherData } from "@/types/requests/languageSwitcher"
 import type { Header } from "@/types/trpc/routers/contentstack/header"
 
 export interface MobileMenuProps {