fix(review): address second CodeRabbit pass

- streamystats: derive toggle enablement from the same effective URL the
  input renders (locked admin URL no longer disables every switch)
- FilterSheet: use the deep-equality rule for toggling that rendering
  already uses — option objects are recreated across renders
- DownloadCard: take t from useTranslation so badge labels re-render on
  language change
- fileOperations: count trickplay bytes in the storage total, matching
  the per-item size model
- PendingAccountSaveModal: warn instead of silently swallowing a failed
  account save

components/PendingAccountSaveModal.tsx

@@ -37,7 +37,7 @@ export const PendingAccountSaveModal: React.FC = () => {
         const serverName = pending?.serverName;
         setPending(null);
         saveCurrentAccount({ securityType, pinCode, serverName }).catch(
-          () => {},
+          (error) => console.warn("Failed to save account:", error),
         );
       }}
     />