fix: Change the data in the dataset page to be obtained using the interface (#8726)

### What problem does this PR solve?

Change the data in the dataset page to be obtained using the interface,
and change the import to obtain all data every 15 seconds to obtain the
data of the current page every 5 seconds when parsing the existing file.
[#3221](https://github.com/infiniflow/ragflow/issues/3221)

### Type of change

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

web/src/pages/chunk/parsed-result/add-knowledge/components/knowledge-chunk/index.tsx

@@ -183,9 +183,9 @@ const Chunk = () => {
             <Spin spinning={loading} className={styles.spin} size="large">
               <div className="h-[100px] flex flex-col justify-end pb-[5px]">
                 <div>
-                  <h2 className="text-[24px]">Chunk Result</h2>
+                  <h2 className="text-[24px]">{t('chunk.chunkResult')}</h2>
                   <div className="text-[14px] text-[#979AAB]">
-                    View the chunked segments used for embedding and retrieval.
+                    {t('chunk.chunkResultTip')}
                   </div>
                 </div>
               </div>