Clean up admin hub UX: tabs, chrome, and redundant headers.

Wire orphan routes into hub tabs, group Radio into primary/tools rows, show theme/language once on desktop, and remove duplicate page titles under AdminHubChrome.

Co-authored-by: Cursor <[email protected]>

src/app/admin/translations/translations-client.tsx

@@ -1,6 +1,6 @@
 "use client";
 
-import { Download, Globe, Save } from "lucide-react";
+import { Download, Save } from "lucide-react";
 import { useMemo, useState } from "react";
 import { saveTranslations } from "@/actions/translations";
 import { Button } from "@/components/ui/button";
@@ -138,11 +138,7 @@ export function TranslationsClient({ localeContents }: Props) {
 
 	return (
 		<div className="space-y-6">
-			<div className="flex items-center justify-between">
-				<h1 className="text-2xl font-bold flex items-center gap-2">
-					<Globe className="w-6 h-6" />
-					CMS
-				</h1>
+			<div className="flex justify-end">
 				<div className="flex gap-2">
 					<Button variant="outline" size="sm" onClick={handleExport}>
 						<Download className="w-4 h-4 mr-1" /> Export