[Fleet]: Outdated screenshots for Dashboards are visible.

[amolnater-qasource]

Description: Outdated screenshots for Dashboards are visible.

Link: https://www.elastic.co/guide/en/fleet/current/example-standalone-monitor-nginx-serverless.html#nginx-guide-confirm-agent-data-serverless https://www.elastic.co/guide/en/fleet/current/example-standalone-monitor-nginx.html

Actual Screenshot:

Expected Screenshot:

[amolnater-qasource]

@manishgupta-qasource Please review.

[manishgupta-qasource]

Secondary review for this ticket is Done

[amolnater-qasource]

FYI @kilfoyle