fix: reference file with 'docx' type can not open #844 (#1635)

### What problem does this PR solve?

fix: reference file with 'docx' type can not open #844

### Type of change

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

web/src/utils/documentUtils.ts

@@ -1,3 +1,4 @@
+import { SupportedPreviewDocumentTypes } from '@/constants/common';
 import { IChunk } from '@/interfaces/database/knowledge';
 import { UploadFile } from 'antd';
 import { v4 as uuid } from 'uuid';
@@ -46,3 +47,7 @@ export const isPdf = (name: string) => {
 export const getUnSupportedFilesCount = (message: string) => {
   return message.split('\n').length;
 };
+
+export const isSupportedPreviewDocumentType = (fileExtension: string) => {
+  return SupportedPreviewDocumentTypes.includes(fileExtension);
+};