Add missing border-radius to the collection table (#35402)

frontend/src/metabase/collections/components/BaseItemsTable.styled.tsx

@@ -19,6 +19,7 @@ export const Table = styled.table<{ canSelect: boolean }>`
   background-color: ${color("white")};
   table-layout: fixed;
   border-collapse: unset;
+  border-radius: 8px;
 
   thead {
     th {