feat(search): Optimized search functionality and user interface #3221 (#9535)

### What problem does this PR solve?

feat(search): Optimized search functionality and user interface #3221
### Type of change
- Added similarity threshold adjustment function
- Optimized mind map display logic
- Adjusted search settings interface layout
- Fixed related search and document viewing functions
- Optimized time display and node selection logic

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/pages/next-search/search-view.tsx

@@ -276,7 +276,7 @@ export default function SearchingView({
         </div>
 
         {mindMapVisible && (
-          <div className="flex-1 h-[88dvh] z-30 ml-8 mt-5">
+          <div className="flex-1 h-[88dvh] z-30 ml-32 mt-5">
             <MindMapDrawer
               visible={mindMapVisible}
               hideModal={hideMindMapModal}