fix bug 16 and 17

apps/admin/src/app/login/page.tsx

@@ -1,13 +1,16 @@
-import { headers } from 'next/headers'
+import { cookies, headers } from 'next/headers'
 import { redirect } from 'next/navigation'
 import { resolveServerAppUrl } from '@/lib/appUrls'
 
 export default async function AdminLoginPage() {
   const requestHeaders = await headers()
+  const cookieStore = await cookies()
+  const rawTheme = cookieStore.get('rentaldrivego-theme')?.value
+  const theme = rawTheme === 'light' ? 'light' : 'dark'
   const websiteUrl = resolveServerAppUrl(
     process.env.NEXT_PUBLIC_WEBSITE_URL ?? 'http://localhost:3000',
     requestHeaders.get('host'),
     requestHeaders.get('x-forwarded-proto'),
   )
-  redirect(`${websiteUrl}/en/light/admin-sign-in?next=/admin/dashboard`)
+  redirect(`${websiteUrl}/en/${theme}/admin-sign-in?next=/admin/dashboard`)
 }