fix: enforce semantic contrast across admin

src/app/admin/alerts/page.tsx

@@ -96,7 +96,7 @@ export default async function AdminAlerts() {
 
       <form action={sendHotelAlert} className="admin-card mb-6">
         <h3 className="mt-0">{t("form.send")}</h3>
-        <p className="text-xs text-gray-500 dark:text-gray-400">
+        <p className="text-xs theme-text-muted dark:theme-text-muted">
           {t.rich("form.description", {
             code: (chunks) => <code>{chunks}</code>,
           })}
@@ -134,7 +134,7 @@ export default async function AdminAlerts() {
               <tbody>
                 {alerts.map((a) => (
                   <tr key={String(a.id)}>
-                    <td className="text-sm text-gray-500 dark:text-gray-400 whitespace-nowrap">
+                    <td className="text-sm theme-text-muted dark:theme-text-muted whitespace-nowrap">
                       {fromDate(a.createdAt)}
                     </td>
                     <td>