Fix: The buttons at the bottom of the dataset settings page are not visible on small screens #9638 (#9639)

### What problem does this PR solve?

Fix: The buttons at the bottom of the dataset settings page are not
visible on small screens #9638
### Type of change

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

web/src/pages/dataset/index.tsx

@@ -19,7 +19,7 @@ export default function DatasetWrapper() {
   const { data } = useFetchKnowledgeBaseConfiguration();
 
   return (
-    <section>
+    <section className="flex h-full flex-col w-full">
       <PageHeader>
         <Breadcrumb>
           <BreadcrumbList>
@@ -35,7 +35,7 @@ export default function DatasetWrapper() {
           </BreadcrumbList>
         </Breadcrumb>
       </PageHeader>
-      <div className="flex flex-1">
+      <div className="flex flex-1 min-h-0">
         <SideBar></SideBar>
         <div className="flex-1">
           <Outlet />