Feat: Adjust the operation cell of the table on the file management page and dataset page #3221. (#7526)

### What problem does this PR solve?

Feat: Adjust the operation cell of the table on the file management page
and dataset page #3221.
### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/hooks/logic-hooks/use-row-selection.ts

@@ -9,11 +9,16 @@ export function useRowSelection() {
     setRowSelection({});
   }, []);
 
+  const selectedCount = useMemo(() => {
+    return Object.keys(rowSelection).length;
+  }, [rowSelection]);
+
   return {
     rowSelection,
     setRowSelection,
     rowSelectionIsEmpty: isEmpty(rowSelection),
     clearRowSelection,
+    selectedCount,
   };
 }
 

web/src/hooks/use-document-request.ts

@@ -93,7 +93,7 @@ export const useFetchDocumentList = () => {
       filterValue,
     ],
     initialData: { docs: [], total: 0 },
-    refetchInterval: 15000,
+    // refetchInterval: 15000,
     enabled: !!knowledgeId || !!id,
     queryFn: async () => {
       const ret = await listDocument(