improve: add setting button to pathnode

src/components/Navigations/SideNavigation.js

@@ -9,9 +9,7 @@ const SideNavigation = () => {
     const {data: tree, isLoading, error} = useTree();
     const deletePath = useDeletePath();
     const updatePath = useUpdatePath();
-    const [searchTerm, setSearchTerm] = React.useState("");
     const [keyword, setKeyword] = React.useState("");
-    const [searchMode, setSearchMode] = React.useState(false);
     const handleDelete = (id) => {
         if (window.confirm("Are you sure you want to delete this path?")){
             deletePath.mutate(id, {