DIsplay cell over pinned columns

Author: laratran

packages/mantine-react-table/src/components/body/MRT_TableBodyCell.module.css

@@ -89,7 +89,7 @@
   overflow: visible;
   white-space: normal;
   position: absolute;
-  z-index: 1;
+  z-index: 2;
   padding: var(--table-vertical-spacing)
     var(--table-horizontal-spacing, var(--mantine-spacing-xs));
   background-color: var(--mrt-base-background-color);