Update 'Explore new admin features' section into 'Discover Lightspeed' section

Part of the advertisement work for the Lightspeed operator should be redesigning the  'Explore new admin features' section into 'Discover Lightspeed' section, so its more discoverable.

AC:

• Update 'Explore new admin features' section into 'Explore new features and capabilities' section and link to the OpenShift Lightspeed operator and OpenShift AI operator install pages in the operator-hub.
• Update the unit tests for the 'Explore new admin features' section. https://github.com/openshift/console/blob/master/frontend/public/components/dashboard/dashboards-page/cluster-dashboard/getting-started/__tests__/explore-admin-features-getting-started-card.spec.tsx