[Cloud Security][Findings++ Phase 1] Implement ability to derive list of selectable columns from the underlying data

[mitodrummer]

Motivation

One of the requirements for Phase 1 of the Findings page enhancements is the ability to display any field within the findings/vuln documents as a column in our new common table component.

On the security -> alerts page there is a [fields] button to allow the user to choose which fields are fetched and appear as options in the [columns] button selector. The fields modal also supports the ability to define custom runtime fields for the table etc..

Definition of done

• explore feasibility of using the fields modal to drive this feature (hopefully easy to include that logic in CSP)
• optionally, as a simpler phase 1 approach, we could derive these fields from our dataView and present them as toggles in the [columns] button of the table component. This approach would ensure we fetch all fields (which we currently do now).
• Ensure testing happens for both ESS and serverless modes of operation

Out of scope

• [ ]

Related tasks

• https://github.com/elastic/security-team/issues/7351

[elasticmachine]

Pinging @elastic/kibana-cloud-security-posture (Team:Cloud Security)

[oren-zohar]

Verified under Findings>Misconfigurations:

Findings>Vulnerabilities does not include this change: