[Cloud Security] Fixed an issue with Host.name Alerts contextual flyout (elastic#200626)

## Summary

This PR addresses issue with Alerts flyout on host.name. Users are
unable to to open Flyout via clicking Expand flyout (Missing this) and
also unable to close Alerts datagrid

## Issue
<img width="1728" alt="Screenshot 2024-11-18 at 9 43 24 AM"
src="https://github.com/user-attachments/assets/768729ac-b7e7-4bac-a6a6-253ad183b4bb">

## Fix
<img width="1725" alt="Screenshot 2024-11-18 at 9 44 05 AM"
src="https://github.com/user-attachments/assets/25044a1c-924f-48f1-8f41-51d5f5797b28">

Author: animehart

x-pack/plugins/security_solution/public/cloud_security_posture/components/alerts/alerts_preview.tsx

@@ -225,7 +225,7 @@ export const AlertsPreview = ({
           <EuiText
             size="xs"
             css={{
-              fontWeight: euiTheme.font.weight.semiBold,
+              fontWeight: euiTheme.font.weight.bold,
             }}
           >
             <FormattedMessage

x-pack/plugins/security_solution/public/flyout/entity_details/host_right/index.tsx

@@ -216,7 +216,10 @@ export const HostPanel = ({
             <FlyoutNavigation
               flyoutIsExpandable={
                 !isPreviewMode &&
-                (isRiskScoreExist || hasMisconfigurationFindings || hasVulnerabilitiesFindings)
+                (isRiskScoreExist ||
+                  hasMisconfigurationFindings ||
+                  hasVulnerabilitiesFindings ||
+                  hasNonClosedAlerts)
               }
               expandDetails={openDefaultPanel}
             />