### What problem does this PR solve?
Feat: Add the iteration Node #4242
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
- [x] New Feature (non-breaking change which adds functionality)
---------
Co-authored-by: Yingfeng <yingfeng.zhang@gmail.com>
Co-authored-by: Jin Hai <haijin.chn@gmail.com>
### What problem does this PR solve?
feat: API access key management #2846
feat: Render markdown file with remark-loader #2846
### Type of change
- [ ] Bug Fix (non-breaking change which fixes an issue)
- [x] New Feature (non-breaking change which adds functionality)
- [ ] Documentation Update
- [ ] Refactoring
- [ ] Performance Improvement
- [ ] Other (please describe):
### What problem does this PR solve?
#627
fix: filter knowledge list by keywords
fix: clear the selected file list after the file is uploaded
successfully
feat: add ellipsis pattern to chunk list
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Embed the chat window into other websites through iframe
#345
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
* fix: by obtaining the width and height of the pdf and passing it to boundingRect, the problem of inaccurate positioning of file highlighting is fixed
* feat: remove actualPositions from buildChunkHighlights
* feat: download documents on the document list page
* feat: add tooltip to Form.Item
* feat: set font family to inter
* feat: add loading to ChatContainer
* feat: fixed the issue where ChatConfigurationModal displays old data when creating a new dialog
* feat: Add Skeleton to MessageItem before the backend returns a message
* feat: add pagination to document table
* feat: fetch document list by page
* feat: poll the document list
* feat: upload document
* feat: save the selected parser to the backend on the upload file page
* feat: Modify the color of the svg icon in the header according to the selected state
* feat: add translation icon to header
* feat: shorten the route length of the knowledge base
* feat: extract routing information from the knowledge base into constants
* feat: remove unnecessary 'loading' fields from other files
* feat: layout the knowledge list page
* feat: modify the page switching button in the header
