Refactor: Consolidation WEB API & HTTP API for document get_filter (#14248)

### What problem does this PR solve?

Before consolidation
Web API: POST /v1/document/filter
Http API - GET /api/v1/datasets/<dataset_id>/documents

After consolidation, Restful API -- GET
/api/v1/datasets/<dataset_id>/documents?type=filter
### Type of change

- [x] Refactoring

web/src/services/knowledge-service.ts

@@ -152,7 +152,7 @@ const methods = {
   },
   documentFilter: {
     url: api.getDatasetFilter,
-    method: 'post',
+    method: 'get',
   },
   getMeta: {
     url: getMeta,
@@ -262,7 +262,7 @@ export const listDocument = (
 };
 
 export const documentFilter = (kb_id: string) =>
-  request.post(api.getDatasetFilter, { kb_id });
+  request.get(api.getDatasetFilter(kb_id), { params: {} });
 
 // Custom upload function that handles dynamic URL using axios directly
 export const uploadDocument = async (datasetId: string, formData: FormData) => {