* 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

app/[lang]/webview/refresh/page.tsx

@@ -1,13 +1,10 @@
 import LoadingSpinner from "@/components/LoadingSpinner"
-import { setLang } from "@/i18n/serverContext"
 
 import styles from "./page.module.css"
 
 import type { LangParams, PageArgs } from "@/types/params"
 
-export default function Refresh({ params }: PageArgs<LangParams>) {
-  setLang(params.lang)
-
+export default function Refresh({}: PageArgs<LangParams>) {
   return (
     <div className={styles.container}>
       <LoadingSpinner />