Please address the comments from this code review:

## Overall Comments
- In `getLastColgroup`, the `length - 2`/`length - 1` indexing assumes a minimum number of `col` elements; consider guarding against `length < 2` to avoid returning `undefined` or accessing out-of-bounds when table markup changes.
- `getColumnRenderWidth` repeatedly queries `thead` and `tbody` for each column; if this runs frequently, you may want to cache the header row and a representative body row outside the loop and pass them in to avoid repeated DOM queries.
- In `resetTableWidth`, `colgroup.style = null` wipes all inline styles; if there are non-width-related styles that need to be preserved, consider clearing only `colgroup.style.width` instead of resetting the whole style object.

## Individual Comments

### Comment 1
<location path="src/BootstrapBlazor/Components/Table/Table.razor.js" line_range="1067-1088" />
<code_context>
     }));
 }

+const getTableWidthByColumnGroup = (table, defaultWidth) => {
+    return [...table.querySelectorAll('colgroup col')]
+        .map((col, index) => getColumnRenderWidth(table, col, index, defaultWidth))
+        .reduce((accumulator, val) => accumulator + val, 0);
+}
+
+const getColumnRenderWidth = (table, col, index, defaultWidth) => {
+    let width = parseFloat(col.style.width);
+    if (!isNaN(width) && width > 0) {
+        return width;
+    }
+
+    const header = table.querySelectorAll('thead > tr:last-child > th').item(index);
+    width = header?.offsetWidth ?? 0;
+    if (width > 0) {
+        return width;
+    }
+
+    const row = [...table.querySelectorAll('tbody > tr')].find(i => !i.classList.contains('is-detail'));
+    width = row?.children.item(index)?.offsetWidth ?? 0;
+    return width > 0 ? width : defaultWidth;
+}
</code_context>
<issue_to_address>
**suggestion (performance):** Avoid repeated DOM queries inside width calculations for better performance.

`getTableWidthByColumnGroup` / `getColumnRenderWidth` re-run `querySelectorAll` on `colgroup col`, `thead`, and `tbody` for every column, which can be costly on large tables or during frequent resizes. Consider querying these once (e.g. `const cols = ...`, `const headers = ...`, a cached non-detail body row) and passing them into `getColumnRenderWidth`, or at least moving the header/body queries outside the per-column loop.

```suggestion
const getTableWidthByColumnGroup = (table, defaultWidth) => {
    const cols = [...table.querySelectorAll('colgroup col')];
    const headers = table.querySelectorAll('thead > tr:last-child > th');
    const bodyRows = table.querySelectorAll('tbody > tr');
    const dataRow = [...bodyRows].find(row => !row.classList.contains('is-detail'));

    return cols
        .map((col, index) => getColumnRenderWidth(col, index, defaultWidth, headers, dataRow))
        .reduce((accumulator, val) => accumulator + val, 0);
}

const getColumnRenderWidth = (col, index, defaultWidth, headers, dataRow) => {
    let width = parseFloat(col.style.width);
    if (!isNaN(width) && width > 0) {
        return width;
    }

    const header = headers.item(index);
    width = header?.offsetWidth ?? 0;
    if (width > 0) {
        return width;
    }

    const cell = dataRow?.children.item(index);
    width = cell?.offsetWidth ?? 0;

    return width > 0 ? width : defaultWidth;
}
```
</issue_to_address>