fix: display total items on chunk list page #900 (#1584)

### What problem does this PR solve?
fix: display total items on chunk list page #900

### Type of change

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

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

@@ -203,6 +203,12 @@ const Chunk = () => {
                 current={pagination.current}
                 size={'small'}
                 total={total}
+                showTotal={(total) => (
+                  <Space>
+                    {t('total', { keyPrefix: 'common' })}
+                    {total}
+                  </Space>
+                )}
               />
             </div>
           </Flex>

web/src/pages/add-knowledge/components/knowledge-chunk/model.ts

@@ -29,6 +29,7 @@ const model: DvaModel<ChunkModelState> = {
     chunkInfo: {},
     documentInfo: {} as IKnowledgeFile,
     pagination: {
+      total: 0,
       current: 1,
       pageSize: 10,
     },
@@ -68,6 +69,7 @@ const model: DvaModel<ChunkModelState> = {
         pagination: {
           current: 1,
           pageSize: 10,
+          total: 0,
         },
         searchString: '',
         available: undefined,