fix(openflare): improve SWOfflineDomains validation and snapshot diff logic

frontend/app/(main)/responses/components/contact-page-tab.tsx

@@ -194,6 +194,7 @@ export function ContactPageTab({
             preview={(html) => html}
             footerHint={null}
             showPreviewLink={false}
+            previewTitle='离线联系页实时预览'
           />
         </CardContent>
       </Card>

frontend/app/(main)/responses/components/error-page-tab.tsx

@@ -42,9 +42,7 @@ export function ErrorPageTab({
   optionMap: Record<string, string>;
 }) {
   const queryClient = useQueryClient();
-  const [fields, setFields] = useState<ErrorPageFields>(
-    defaultErrorPageFields,
-  );
+  const [fields, setFields] = useState<ErrorPageFields>(defaultErrorPageFields);
   const [tagError, setTagError] = useState<string | null>(null);
 
   useEffect(() => {