### 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?
feat: add file icon to table of FileManager #345
fix: modify datasetDescription
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
fix: all documents in the knowledge base cannot be selected if they have
not been parsed.
Issue link: #214
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
* feat: add loading to all pages
* fix: disable sending messages if both application and conversation are empty
* feat: add chatSpin class to Spin of chat
* feat: set initial value for the model field of chat setting
* feat: add category column to chunk table
* feat: fetch knowledge detail on KnowledgeUploadFile mount
* feat: create chunk and edit chunk
* feat: delete chunk
* feat: search chunks
* feat: delete chunks in batches
* feat: set whether chunks are available in batches
* 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
