### 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: Update the parsing editor to support dynamic field names and
optimize UI styles #9869
-Modify the default background color of UI components such as Input and
Select to 'bg bg base'`
-Remove TagItems component reference from naive configuration page
### 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)