### What problem does this PR solve?
Fix: Bug fixes#9869
- Added the disabled attribute to control the modal confirmation button
state
- Conditionally rendered the catalog enhancement toggle component
- Replaced the selector component and removed unused imports
- Removed redundant catalog enhancement text in the Chinese language
pack
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Fix: Switch the default theme from light mode to dark mode and improve
some styles #9869
-Update UI component styles such as input boxes, tables, and prompt
boxes
-Optimize login page layout and style details
-Revise some of the wording, such as uniformly changing "data flow" to
"pipeline"
-Adjust the parser to support the markdown type
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Fix: Optimized the login page and fixed some known issues. #9869
- Added the FlipCard3D component to implement a 3D flip effect on the
login/registration forms.
- Adjusted the Spotlight component to support custom positioning and
color configurations.
- Updated the route to point to the new login page /login-next.
- Added a cancel interface to the auto-generate function.
- Fixed scroll bar issues in PDF preview.
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Fix: Added table of contents extraction functionality and optimized form
item layout #9869
- Added `EnableTocToggle` component to toggle table of contents
extraction on and off
- Added multiple parser configuration components (such as naive, book,
laws, etc.), displaying different parser components based on built-in
slicing methods
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
feat: Added UI functions related to data-flow knowledge base #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
