### What problem does this PR solve?
Fix (style): Optimized Datasets color scheme and layout #3221
- Updated background and text colors for multiple components
- Adjusted some layout structures, such as the paging position of
dataset tables
- Unified status icons and color mapping
- Optimized responsive layout to improve compatibility across different
screen sizes
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Feat: Add FileUploadDialog #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
