Fix: Optimize page layout and style #3221 (#9852)

### What problem does this PR solve?

Fix: Optimize page layout and style #3221

- Added the cursor-pointer class to the logo in the Header component
- Added an icon property to the ListFilterBar in the Agents and ChatList
components
- Adjusted the Dataset page layout and set a minimum width
- Optimized the DatasetWrapper page layout and added the overflow-auto
class
- Simplified the search icon in the SearchList component

### Type of change

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

---------

Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>

web/src/pages/dataset/index.tsx

@@ -39,7 +39,7 @@ export default function DatasetWrapper() {
       </PageHeader>
       <div className="flex flex-1 min-h-0">
         <SideBar></SideBar>
-        <div className="flex-1">
+        <div className="flex-1 overflow-auto">
           <Outlet />
         </div>
       </div>