Add runbook_url to alerts in the OCP UI

1. Proposed title of this feature request
Add runbook_url to alerts in the OCP UI

2. What is the nature and description of the request?
If an alert includes a runbook_url label, then it should appear in the UI for the alert as a link.

3. Why does the customer need this? (List the business requirements here)
Customer can easily reach the alert runbook and be able to address their issues.

4. List any affected packages or components.