Edit CI settings doc to shorten sentences

Closes #241688

See merge request gitlab-org/gitlab!43659

Add Epics to Basic Search

Closes #4745

See merge request gitlab-org/gitlab!42456

This MR adds epics to basic (postgres) search. It's possible to search
text in the title and description fields

Handle elastic:reindex_cluster unique index violation

See merge request gitlab-org/gitlab!43690

Deprecate lowercase enums in BaseEnum

See merge request gitlab-org/gitlab!43650

- Update docs

Automate todo and doing board columns

See merge request gitlab-org/gitlab!42038

Accidentally committed site speed directory
Removed it in a future commit

Removed commented out code

Removed unneeded code and tests

Removed unused rspec tests

Did not mean to commit sitespeed-result

Removing it here

Removed unneeded lib

Moved default list creation to store

Also updated docs

Removed unneeded code

Added back accidentally deleted code

More unneeded code removal

Fixed a couple more specs

Removing notes from security docs

See merge request gitlab-org/gitlab!43766

Docs: Remove unneeded Overview header from pages

See merge request gitlab-org/gitlab!43779

Introduce User Timing API metrics for WebIDE

See merge request gitlab-org/gitlab!43407

Doc: Remove unneeded Overview header from page

See merge request gitlab-org/gitlab!43787

Bump GITLAB_KAS_VERSION to 0.0.6

See merge request gitlab-org/gitlab!43784

Add mutation granularity guidance

See merge request gitlab-org/gitlab!38558

- Simplify language
- Break down long lines
- Future -> present tense

Fix Ruby 2.7 deprecation warnings for Conflict::FileCollection

See merge request gitlab-org/gitlab!43679

Update Note description in styleguide.md

See merge request gitlab-org/gitlab!43761

Doc: Remove unneeded Overview header from pages

See merge request gitlab-org/gitlab!43777

Add default date range for audit events

See merge request gitlab-org/gitlab!42986

This sets the default date range filter for audit events
to this month, startint at the 1st day of the month and
ending at the current date. It also sets the created_before
paramater time to the end_of_day time to include events
that occured on that date.

Remove mention of SAST

See merge request gitlab-org/gitlab!43645

It has been several GitLab versions since Secret Detection was
split from SAST. As such this admonition can now be removed.

Allow access to Users Public GPG Keys

Closes #21584

See merge request gitlab-org/gitlab!43332

Docs: Remove Overview h2 from APM-related page

See merge request gitlab-org/gitlab!43771

- We accept only one mark instead of Array
- Got rid of unnecessary performanceMark() utility function

- New performance utility
- Measure and mark tree + file loading

Add description to requirements

See merge request gitlab-org/gitlab!43099

* adds both description and description_html columns

Update Gitaly version

See merge request gitlab-org/gitlab!43759

Bump selenium-webdriver to fix Ruby 2.7 warnings

See merge request gitlab-org/gitlab!43501

Refactored group repository analytics

See merge request gitlab-org/gitlab!43422

Fix Ruby 2.7 warnings for MergeabilityCheckService

See merge request gitlab-org/gitlab!43670