nodelist search style fix

dashboard/src/components/Table.tsx

@@ -210,8 +210,8 @@ const SearchRow = styled.div`
   min-width: 300px;
   max-width: min-content;
   background: #ffffff11;
-  margin-bottom: 7px;
-  margin-top: 7px;
+  margin-bottom: 15px;
+  margin-top: 0px;
   i {
     width: 18px;
     height: 18px;

dashboard/src/main/home/cluster-dashboard/dashboard/NodeList.tsx

@@ -18,11 +18,11 @@ const NodeList: React.FC = () => {
   const columns = useMemo<Column<any>[]>(
     () => [
       {
-        Header: "Node name",
+        Header: "Node Name",
         accessor: "name",
       },
       {
-        Header: "Machine type",
+        Header: "Machine Type",
         accessor: "machine_type",
       },
       {