Fix: Optimized the test results page layout and internationalization #3221 (#9974)

### What problem does this PR solve?

Fix: Optimized the test results page layout and internationalization

- Added an empty data component for when test results are empty
- Optimized internationalization support for the paging component
- Updated the layout and style of the test results page
- Added a tooltip for when test results are empty

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/pages/next-search/search-view.tsx

@@ -262,7 +262,7 @@ export default function SearchingView({
           </div>
 
           {total > 0 && (
-            <div className="mt-8 px-8 pb-8">
+            <div className="mt-8 px-8 pb-8 text-base">
               <RAGFlowPagination
                 current={pagination.current}
                 pageSize={pagination.pageSize}