Add docs on ignoring error

What does this MR do?

This adds docs for ignoring a Sentry error via the GitLab UI.

Related issues

#39665 (closed)

Author's checklist

• Follow the Documentation Guidelines and Style Guide.
• If applicable, update the permissions table.
• Link docs to and from the higher-level index page, plus other related docs where helpful.
• Apply the documentation label.

Review checklist

All reviewers can help ensure accuracy, clarity, completeness, and adherence to the Documentation Guidelines and Style Guide.

1. Primary Reviewer

• Review by a code reviewer or other selected colleague to confirm accuracy, clarity, and completeness. This can be skipped for minor fixes without substantive content changes.

2. Technical Writer

• Optional: Technical writer review. If not requested for this MR, must be scheduled post-merge. To request for this MR, assign the writer listed for the applicable DevOps stage.

3. Maintainer

1. Review by assigned maintainer, who can always request/require the above reviews. Maintainer's review can occur before or after a technical writer review.
2. Ensure a release milestone is set.
3. If there has not been a technical writer review, create an issue for one using the Doc Review template.

/label documentation

changed milestone to %12.7

added Category:Error Tracking Deliverable Kickoff Highlight backend devopsmonitor direction documentation frontend grouprespond release post item typefeature workflowin review labels

mentioned in merge request !22850 (merged)

changed the description

assigned to @axil

mentioned in merge request gitlab-com/www-gitlab-com!38125 (merged)

unmarked as a Work In Progress

added 1 commit

• 0bffa094 - Fix small grammar issues

Compare with previous version

resolved all threads

approved this merge request

added 1 commit

• 5ad4d34b - Apply suggestion to doc/user/project/operations/error_tracking.md

Compare with previous version

enabled an automatic merge when the pipeline for 5ad4d34b succeeds

merged

mentioned in commit 3ba41917