Fix lint issue in checkerboard viz (#44510)

Fixes a lint issue in (currently unused) code for the 24-hr
checkerboard, that was causing one of our build tests to fail.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Bug Fixes**
* Enhanced 24-hour checkerboard visualization tooltips to display
complete data values and totals alongside percentage information.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

frontend/pages/DashboardPage/cards/ChartCard/CheckerboardViz.tsx

@@ -99,6 +99,8 @@ const CheckerboardViz = ({
         return {
           dayIndex: 0,
           hourRow: i,
+          value: point.value,
+          total: point.total,
           percentage: point.percentage,
           dayLabel: format(date, "MMM d"),
           hourLabel: formatHourLabel(date.getHours()),