perf(data-table): optimize action column width allocation (#6135)

- apply a minimum width hint to content-sized columns to prevent wasted space.
- preserve remaining table width allocation across regular data columns.

web/src/components/data-table/core/data-table-colgroup.tsx

@@ -54,7 +54,7 @@ function getColumnWidth<TData>(
   totalSize: number
 ) {
   if (isContentSizedColumn(columnId)) {
-    return undefined
+    return '1%'
   }
 
   if (table.options.enableColumnResizing === true) {