### What problem does this PR solve?
Fix: Refactoring and enhancing the functionality of the delete
confirmation dialog component
- Refactoring and enhancing the functionality of the delete confirmation
dialog component
- Modifying the style of the user center
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Fix: Generate avatar; Add knowledge graph; Modify the style of the
multi-select component
[#3221](https://github.com/infiniflow/ragflow/issues/3221)
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
