chore(auth) : show sign-out icon without text

components/auth/sign-out-button.tsx

@@ -20,7 +20,7 @@ export function SignOutButton({ admin = false }: { admin?: boolean }) {
     router.refresh();
   }
 
-  return <Button type="button" variant="ghost" size="sm" onClick={() => void signOut()}>
+  return <Button type="button" variant="ghost" size="icon-sm" aria-label="ออกจากระบบ" onClick={() => void signOut()}>
-    <LogOutIcon data-icon="inline-start" />ออกจากระบบ
+    <LogOutIcon />
   </Button>;
 }