### What problem does this PR solve?

https://github.com/infiniflow/ragflow/issues/7753

The internal is due to when the selected row keys change will trigger a
testing, but I do not know why.

### Type of change

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

### What problem does this PR solve?
feat: Add RetrievalDocuments to SearchPage #2247
feat: Click on the link in the reference to display the pdf drawer #2247

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

### What problem does this PR solve?

fix: test chunk by @tanstack/react-query #1306

### Type of change

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

### What problem does this PR solve?

fix: reference file with 'docx' type can not open #844

### Type of change

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

### 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)

### What problem does this PR solve?

fix: fix uploaded file time error #680
feat: support preview of word and excel #684 

### Type of change

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

* feat: add message popover content

* feat: add file icon

* feat: add KnowledgeTesting

* feat: add SelectFiles