Convert podlogs and events pages to actions

[mawinter69]

For the new agent UI (jenkinsci/jenkins#26587) everything that should appear in the menu must be an action.

Testing done:

• started a job that requested an agent from kubernetes
• go to agent page
• links to Pod Logs and Events are there
• Pod Log page lists the running containers
• Clicking on a container links shows the container log
• Events page shows the events for the container.

Testing done

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