Fix: Added table of contents extraction functionality and optimized form item layout #9869 (#10492)

### 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)

web/src/components/layout-recognize-form-field.tsx

@@ -79,7 +79,7 @@ export function LayoutRecognizeFormField({
             >
               <FormLabel
                 tooltip={t('layoutRecognizeTip')}
-                className={cn('text-sm text-muted-foreground whitespace-wrap', {
+                className={cn('text-sm text-text-secondary whitespace-wrap', {
                   ['w-1/4']: horizontal,
                 })}
               >