Fix: When creating a dataset, if no chunk_method is selected, there is no indication that this is a required field. (#14039)

### What problem does this PR solve?
Fix: When creating a dataset, if no `chunk_method` is selected, there is
no indication that this is a required field.

### Type of change

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

web/src/constants/knowledge.ts

@@ -95,3 +95,8 @@ export enum DocumentParserType {
 }
 
 export const TagRenameId = 'tagRename';
+
+export enum ParseType {
+  BuiltIn = 1,
+  Pipeline = 2,
+}