fix(flow): Fix text descriptions for multi-column layout options. (#14107)

### What problem does this PR solve?

fix(flow): Fix text descriptions for multi-column layout options.

### Type of change

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

---------

Co-authored-by: Yingfeng <yingfeng.zhang@gmail.com>

web/src/locales/en.ts

@@ -1517,7 +1517,7 @@ Example: Virtual Hosted Style`,
 Best for: Documents with independent, structurally significant sections — such as legal statutes, regulations, contracts, and technical specifications — where each chunk must be identifiable by its structural position even without surrounding context.`,
       groupTip: `Split the document flat at a chosen heading level and automatically merge adjacent small sections to preserve content continuity. No parent-heading path is injected.<br>
 Best for: Documents with flowing, contextually connected content — such as books, manuals, reports, and articles — where adjacent paragraphs should stay together to maintain narrative coherence.`,
-      enableMultiColumn: 'Remove original table of contents',
+      enableMultiColumn: 'Detect multi-column layout',
       enableMultiColumnTip:
         'Detect and parse multi-column page layouts to preserve the correct reading order. Turn this on for PDFs or documents with two-column or newspaper-style layouts.',
       removeToc: 'Remove original table of contents',

web/src/pages/agent/form/title-chunker-form/index.tsx

@@ -311,10 +311,10 @@ const TitleChunkerForm = ({ node }: INextOperatorForm) => {
                       ? t('flow.groupTip')
                       : '',
               }}
-            >
-              {/* {method === 'hierarchy' && t('flow.hierarchyTip')}
+            />
+            {/* {method === 'hierarchy' && t('flow.hierarchyTip')}
               {method === 'group' && t('flow.groupTip')} */}
-            </span>
+
             {/* <span className="flex ml-2 text-xs self-center">
               {showAllTip ? '▲' : ''}
             </span> */}