When fast-forward merge is enabled, merges might fail due to a failed
pre-receive check (e.g. due to file locks, commit message push rules,
etc.) but the UI would only display:

```
Merge failed: pre-receive hook failed. Please try again.
```

While the raw message was logged in Sentry and in `exceptions_json.log`,
this kept users in the dark.

Gitaly prefaces the error response status from the `/internal/allowed`
API call with `GitLab:`, so we can use this to display the error to the
user. We now only fallback to a default if we do not have anything to
show. Now, users see a more informative message, such as:

```
Merge failed: Commit message does not follow the pattern
'MERGEME'. Please try again.
```

Relates to https://gitlab.com/gitlab-org/gitlab/-/issues/246816

Allow placeholder `:id` for group link route

See merge request gitlab-org/gitlab!44346

Allows us to pass route with placeholder to frontend

Update integration descriptions to not be project-specific

See merge request gitlab-org/gitlab!44893

To not be project-specific.
- Make sure translations are updated as well.

Add note about cross site cookies browser limitation to Jira App page

See merge request gitlab-org/gitlab!44898

Remove duplicated BS display property from Commit/Snippet's HAML

See merge request gitlab-org/gitlab!44917

Use scan information in issue template

See merge request gitlab-org/gitlab!44620

Merge branch '235603-convert-group-members-list-view-from-haml-to-vue-role-dropdown-component' into 'master'

Group members Vue conversion - role dropdown

See merge request gitlab-org/gitlab!44651

Part of a larger initiative to convert the group members table from
HAML to Vue

Add status emoji to member avatar

See merge request gitlab-org/gitlab!44064

Part of a larger initiative to convert the group members view from
HAML to Vue

Fix params not filtered on project approval API

See merge request gitlab-org/gitlab!44885

Docs: Git rebase, force-push, merge conflicts

See merge request gitlab-org/gitlab!43887

Update metadata for SSH page

See merge request gitlab-org/gitlab!44322

Resolve "snowplow - count creating incidents via create incident button"

See merge request gitlab-org/gitlab!44631

Merge branch 'Replace-GlDeprecatedDropdown-with-GlDropdown-in-app/assets/javascripts/vue_shared/components/split_button.vue' into 'master'

Replace gl deprecated dropdown with gl dropdown in app/assets/javascripts/vue shared/components/split button.vue

See merge request gitlab-org/gitlab!41433

Replace gl deprecated dropdown with gl dropdown in app/assets/javascripts/vue shared/components/split button.vue

Docs: Reduce seats automatically on .COM

See merge request gitlab-org/gitlab!44442

Resolve "Increase limit for number of files loaded for a single diff"

See merge request gitlab-org/gitlab!43123

Add variables inheriting docs to multi project pipeline doc

See merge request gitlab-org/gitlab!44714

Create tests for ee/app/assets/javascripts/security_dashboard/components/selection_summary_vuex.vue

See merge request gitlab-org/gitlab!44213

Issuable Show: Add IssuableTitle component

See merge request gitlab-org/gitlab!44732

Update Add Members Api to accept user_id list

See merge request gitlab-org/gitlab!44051

Update dependency vue-router to ^3.4.6

See merge request gitlab-org/gitlab!44598

"None" style: fix merge conflict button text

See merge request gitlab-org/gitlab!44427

Fix unnecessarily escaped merge error text

See merge request gitlab-org/gitlab!44844

Improve WebIDE error messages on committing

See merge request gitlab-org/gitlab!43408

Issuable Show: Add IssuableEditForm component

See merge request gitlab-org/gitlab!44737

Feat(Instance Statistics): add getAverageByMonth

See merge request gitlab-org/gitlab!44734

Add util to convert issues and merge request data
to average by month

Issuable Show: Add IssuableDescription component

See merge request gitlab-org/gitlab!44735