feat(i18n): add language switcher

src/app/(auth)/login/page.tsx

@@ -1,5 +1,6 @@
 import { redirect } from "next/navigation"
 
+import { LanguageSwitcher } from "@/components/i18n/language-switcher"
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card"
 import { getI18n } from "@/i18n/server"
 import { auth } from "@/lib/auth"
@@ -11,12 +12,18 @@ export default async function LoginPage() {
 
   if (session) redirect("/")
 
-  const { dictionary } = await getI18n()
+  const { dictionary, locale } = await getI18n()
   const copy = dictionary.login
 
   return (
     <div className="flex min-h-svh w-full items-center justify-center p-6 md:p-10">
-      <div className="w-full max-w-sm">
+      <div className="w-full max-w-sm space-y-3">
+        <div className="flex justify-end">
+          <LanguageSwitcher
+            activeLocale={locale}
+            copy={dictionary.common.languageSwitcher}
+          />
+        </div>
         <Card>
           <CardHeader>
             <CardTitle>