### What problem does this PR solve?
Fix: Optimized the table of contents style and homepage card layout
#3221
- Added background color, text color, and shadow styles to the Markdown
table of contents
- Optimized the date display style in the HomeCard component to prevent
overflow
- Standardized the translation of "dataset" to "knowledge base" to
improve terminology consistency
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Fix: Fixed an issue where knowledge base could not be shared #9634
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Fix (web): Optimize text display effect
-Add text ellipsis and overflow hidden classes to the HomeCard component
to achieve text overflow hiding and ellipsis effects
-Add text ellipsis and overflow hidden classes to the DatasetSidebar
component to improve the display of dataset names
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Fix (next search): Optimize the search problem interface and related
functions #3221
-Add search_id to the retrievval_test interface
-Optimize handleSearchStrChange and handleSearch callbacks to determine
whether to enable AI search based on search configuration
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
