### 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?
Fix: Optimize dataset page layout and internationalization and Fix
setting default values for multi selection drop-down boxes #3221
-Adjust the style and layout of each component on the dataset page
-Add and update multilingual translation content
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Feat: Replace color variables according to design draft #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Modify the Python language template code of the code operator
#4977
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
