Fix compliance report drawer closing incorrectly

What does this MR do and why?

This resolves an issue #356137 (closed) where the compliance report drawer would close when another violation on the same merge request was clicked.

This work is hidden behind a development feature flag.

Screenshots or screen recordings

Before	After
Screen_Recording_2022-03-17_at_13.55.21	Screen_Recording_2022-03-17_at_13.53.05

How to set up and validate locally

1. You need a GitLab Ultimate license.
2. Enable the feature flag in your terminal: echo "Feature.enable(:compliance_violations_report);" | rails c
3. View the compliance report and use the pagination feature: [GDK_HOST]/groups/gitlab-org/-/security/compliance_dashboard
4. Create several violations on the same MR by running this in rails console:

FactoryBot.definition_file_paths = [Rails.root.join('ee', 'spec', 'factories')]
FactoryBot.find_definitions

# Group 22 is gitlab-org by default
group = Group.find_by_id(22)

type = [:approved_by_insufficient_users, :approved_by_committer, :approved_by_merge_request_author]

project = group.projects.sample
merge_request = FactoryBot.create(:merge_request, source_project: project, target_project: project, state: :merged)
merge_request.metrics.update!(merged_at: 1.day.ago)

violations = 4.times.map {
  FactoryBot.create(:compliance_violation, type.sample, severity_level: :high, merge_request: merge_request, violating_user: project.members.sample.user)
}

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #356137 (closed)