### What problem does this PR solve?
feat: After selecting the parsing method as knowledge graph, the
delimiter and chunk token number are displayed. #1594
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
feat: change all file names to lowercase #1574
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
* feat: if the chunk number of the knowledge base is greater than 0, set the embedding model to disabled
* feat: set the object-fit attribute of the chunk image to contain so that the image is not stretched
