fix: return baseUrls if no uid is given to language switcher query

app/[lang]/(live)/@header/[...paths]/@languageSwitcher/page.tsx

@@ -0,0 +1,9 @@
+import { serverClient } from "@/lib/trpc/server"
+
+import LanguageSwitcher from "@/components/Current/Header/LanguageSwitcher"
+
+export default async function LanguageSwitcherRoute() {
+  const data = await serverClient().contentstack.languageSwitcher.get()
+
+  return <LanguageSwitcher urls={data.urls} lang={data.lang} />
+}