### What problem does this PR solve?
Fix: Optimized the style and functionality of multiple components #3221
- Modified the SkeletonCard component, adding a className attribute and
adjusting the style
- Updated the RAGFlowSelect component, adding a disabled attribute
- Adjusted the style of the Tooltip component
- Optimized the layout of the RetrievalTesting and TestingResult pages
- Updated the style and loading status display of NextSearch-related
pages
- Removed unnecessary logs from the Spotlight component
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Feat: Restore the button's background color #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Fix: Fixed the issue where the initial value of the slice method was not
displayed in the dialog box #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: The value selected in the Select component only displays the icon
#3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Modify the dataset list page style #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Display the document configuration dialog with shadcn #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Add NextLLMSelect with shadcn-ui. #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Wrap DynamicVariableForm with Collapsible. #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Add RAGFlowSelect component #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Add DatasetCreatingDialog #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
feat: Add next login page with shadcn/ui #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
