Also does a lot of cleanup and refactoring

Backport changes from 'Partially revert d9cb907c: "Avoid loading objects from DB in ES results"'

See merge request gitlab-org/gitlab-ce!29597

Process up to 100 commit messages for references when pushing to a new default branch

See merge request gitlab-org/gitlab-ce!29511

Commit messages are not processed for references to issues when
creating the default branch on push. This was expected
behavior (probably to avoid performance problems when first pushing a
repository with thousands of commits). However, this is not an issue
because we always limit the number of commits to process to 100
regardless of whether we are creating the default branch or not.

Bring propagated SAST ENV vars into parity with docs

See merge request gitlab-org/gitlab-ce!29564

This reverts commit d9cb907c.

Moves sp.js to CE repo

Closes gitlab-ee#12106

See merge request gitlab-org/gitlab-ce!29545

Review roulette excludes mr_author

Closes #61157

See merge request gitlab-org/gitlab-ce!28886

Add trackEvent when accessing the Register tab

See merge request gitlab-org/gitlab-ce!29336

Added naming convention for .graphql files

See merge request gitlab-org/gitlab-ce!29558

Add quotes to redirect value

Closes #63165

See merge request gitlab-org/gitlab-ce!29584

This is a no-op for CE.

Add dependency proxy to permissions.md

Closes gitlab-ee#12075

See merge request gitlab-org/gitlab-ce!29497

Docs: Convert absolute links to relative in /ci docs

See merge request gitlab-org/gitlab-ce!29029

Leave clear notices in docs about after_script execution context

Closes gitlab-runner#4146

See merge request gitlab-org/gitlab-ce!29510

Removed duplicate content on scoped labels

See merge request gitlab-org/gitlab-ce!29579

Document how to troubleshoot a pending external-dns deployment

See merge request gitlab-org/gitlab-ce!29290

Also update the Review Apps node pools description
Signed-off-by: Rémy Coutable <remy@rymai.me>

Update quick start guide doc to suggest views and methods to be defined in alphabetical order

Closes #62505

See merge request gitlab-org/gitlab-ce!29499

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/62505

CE port of "Comment will select all activites filter by default"

See merge request gitlab-org/gitlab-ce!29496

Excludes MR author from gitlab_ui and single_codebase Review roulette
results.

Add links to select YouTube videos demonstrating GitLab features to docs

See merge request gitlab-org/gitlab-ce!29562

Remove the grafana_dashboard_link feature flag

See merge request gitlab-org/gitlab-ce!29344

Adding break-word css to home-panel-description class to correctly word wrap long words

Closes #62134

See merge request gitlab-org/gitlab-ce!28695

Backport of gitlab-ee!13735

See merge request gitlab-org/gitlab-ce!29289

Merge branch '63010-visual-regression-in-12-0-line-numbers-not-lining-up-in-file-view' into 'master'

Resolve "Visual regression in 12.0: line numbers not lining up in file view"

Closes #63010

See merge request gitlab-org/gitlab-ce!29403

Fix "Resolve conflicts" button not appearing for some users

Closes #47954

See merge request gitlab-org/gitlab-ce!29535

Style popovers according to the design specs

See merge request gitlab-org/gitlab-ce!28375

Bump omniauth_openid_connect to 0.3.1

See merge request gitlab-org/gitlab-ce!29387