Summary: Grafana Cloud adds AI-powered observability

Why It Matters: This change highlights new ways to monitor and understand data using AI.

What Changed:

• "Grafana Cloud" now has a description: "Monitor, analyze, and act faster with AI-powered observability."
• The "Key Capabilities" section now lists "AI/ML insights" earlier.
• "IRM" changed to "Incident response" and "OnCall" changed to "On-call management" in some sections.
• New sections about "AI-powered observability in a chat interface" and "Dashboards out of thin air" were added.
• New content about "Troubleshoot faster," "Reduce telemetry costs," and "Manage your incident response, all in Grafana Cloud" was added.
• The "Learn" section was reorganized and renamed to "Community and events" and "Resources."
• New upcoming events were added, and old ones were removed.
• New blog posts and product release notes were added.
• A "Compare Grafana vs. Datadog" link was added to the footer.
• Many product and solution listings were removed from the footer.