fix for explorer data grid not paginating (#1139)

Signed-off-by: Paul Sebastian <paulstn@amazon.com>
(cherry picked from commit 7f6b95e)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

public/components/event_analytics/explorer/explorer.tsx

@@ -577,7 +577,7 @@ export const Explorer = ({
                       explorerFields={explorerFields}
                       timeStampField={queryRef.current![SELECTED_TIMESTAMP]}
                       rawQuery={appBasedRef.current || queryRef.current![RAW_QUERY]}
-                      totalHits={explorerData?.datarows?.length || 0}
+                      totalHits={_.sum(countDistribution.data['count()'])}
                       requestParams={requestParams}
                       startTime={appLogEvents ? startTime : dateRange[0]}
                       endTime={appLogEvents ? endTime : dateRange[1]}