Clarify details about merge only if pipeline succeeds feature

Closes #28886

See merge request gitlab-org/gitlab!17736

Explain that disabling CI/CD pipelines does not disable
only allow MRs to merge if pipeline succeeds, as this can
also be used by Jenkins integrations. Also updates the
screenshot and cleans up surrounding text.

Update new test to use let variables to follow our testing best practices

See merge request gitlab-org/gitlab!17946

let_it_be for spec/controllers

See merge request gitlab-org/gitlab!17680

Fetch payload body from params[:notification]

See merge request gitlab-org/gitlab!17673

Banners should only be dismissable by clicking x button

See merge request gitlab-org/gitlab!17642

if you click anywhere of the Flash banner,
it will be dismissed. This UX improvement
changes the default behavior. Flash banners
will only be dismissable with by clicking
the x button. This will also fix the UX issue
around trying to c/p error messages.

Count unique users for more accurate SMAU reporting - Create

See merge request gitlab-org/gitlab!15686

Added usage activity data for the create stage

Use Feature Flags Plugin for FF Permissions

See merge request gitlab-org/gitlab!17541

Extend attributes returned by graphql query for issues

Closes #20718

See merge request gitlab-org/gitlab!17802

Add service to help fetch Security CI Report

See merge request gitlab-org/gitlab!17755

Remove public send and pass relation

Lower search results limit to 100

See merge request gitlab-org/gitlab!17876

No more accessing the global object!

Fix permissions for group milestones

See merge request gitlab-org/gitlab!17783

Group milestones permissions were being delegated to project and
returning false for `:read_milestone` ability.

In order to support realtime sidebars and continue to complete
the GraphQL API, added additional attributes to be returned
for IssueType.

https://gitlab.com/gitlab-org/gitlab/issues/20718

Remove duplicate primary button in dashboard snippets

See merge request gitlab-org/gitlab!17709

Resolve "Remove gap at the top of expandable code diff blocks"

Closes #32192

See merge request gitlab-org/gitlab!17026

Removes the thin white gap at the top of the diff
code blocks which was added to preserve column sizes
when diff expansion rows would use `colspan` in the first row.

https://gitlab.com/gitlab-org/gitlab/merge_requests/17026

New usage_activity_by_stage for UsageData - Plan

See merge request gitlab-org/gitlab!14666

Added usage_statistics concern with scope for models

Ref correct FE Slack group in docs

See merge request gitlab-org/gitlab!17936

Update GraphQL overview in Frontend development guidelines

See merge request gitlab-org/gitlab!17714

- removed the GraphQL feature flag mention
- added information about GraphiQL

Custom A/B testing framework

See merge request gitlab-org/gitlab!17703

Check if it exists and set it otherwise

Expose epics closed_at on API

See merge request gitlab-org/gitlab!17156

Fix the path for job log component

See merge request gitlab-org/gitlab!17766

Reduce excessive GC on pull mirrors

Closes gitaly#1686

See merge request gitlab-org/gitlab!17931

Refactor search_list_spec to Jest

Closes #31630

See merge request gitlab-org/gitlab!16905

Fixes wrong link on Protected paths settings

See merge request gitlab-org/gitlab!17945

Anchor link was changed on the documentation MR
https://gitlab.com/gitlab-org/gitlab/merge_requests/16540.

This MR fixes the link to use the correct one.

Related to https://gitlab.com/gitlab-org/gitlab/issues/29952

Flatten counts for usage data to be only integers

See merge request gitlab-org/gitlab!17717

- the version app expects the data in the counts field to be only
  type integer.
- we have already addressed the issue on the version side,
  but should also address it here by backfilling that change
  upstream into gitlab

Geo: Invalidate cache after refreshing foreign tables

Closes #14794

See merge request gitlab-org/gitlab!17885