[Internal]: Removing Last Gap column on Rule Monitoring Table

[jr-araque]

Description

What

We are removing the Last Gap (if any) column on the Rule Monitoring Tab of the Detection Rules Page.

When

9.5

Why

This column showed the duration of the most recent execution gap but did not account for whether the gap had been filled, causing user confusion.

We already are showing two additional columns that provide an accurate, fill-aware information on gaps: Unfilled gaps duration and Gap status badge. Making this column redundant.

Resources

The change was implemented in: elastic/kibana#265476

Original issue: elastic/kibana#227963
Reasoning: elastic/kibana#226530 (comment)

Impacted docs **

The specific Rule's Gap column seems to be mentioned in these two text occurrences:

• Rule Monitoring - Gap Information
• Detect And Alert - Fill Rule Gaps

** Plus a couple of images that show the column in said pages.

Which deployment methods does this change impact?

Elastic On-Prem and Cloud (all)

Feature differences

No response

What Elastic Stack release is this request related to?

9.5

Serverless release

No response

Collaboration model

The documentation team will create the first draft

Point of contact.

Main contact: @jr-araque

Stakeholders: @approksiu @nkhristinin

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