Reduce Bundle Size by lazy loading markdown-it

Closes #56989

See merge request gitlab-org/gitlab-ce!24763

Allow custom squash commit messages

See merge request gitlab-org/gitlab-ce!24518

Merge branch '43681-display-last-activity-and-created-at-datetimes-for-users-in-admin-users' into 'master'

Resolve "Display last activity and created at datetimes for users"

Closes #43681

See merge request gitlab-org/gitlab-ce!24181

Backport for gitlab-ee!9239

See merge request gitlab-org/gitlab-ce!24818

Update version column on updated and installed

See merge request gitlab-org/gitlab-ce!24810

[master] Markdown of release notes leaks confidential issue titles and MR titles to any users

See merge request gitlab/gitlabhq!2869

Fix comment typo in feature proposal issue template

See merge request gitlab-org/gitlab-ce!24927

All applications except for Jupyter have the same #set_initial_status,
so create a new shared example which we include in all application specs
except for juptyer_spec. Juptyer specs already have specs for it's
version of #set_initial_status

This makes this consistent with :updated. And also avoids a potential
issue where an install errors which means that that the recorded version
won't necessarily reflect the version that is actually installed.

Introduce Internal API for searching environment names

See merge request gitlab-org/gitlab-ce!24923

[ci skip]

Add reply to notes to turn into discussions

See merge request gitlab-org/gitlab-ce!24480

Convert noteable_note_spec.js to Vue test utils

See merge request gitlab-org/gitlab-ce!24801

Modify Serverless Listing

See merge request gitlab-org/gitlab-ce!24072

Add metrics chart tooltips

See merge request gitlab-org/gitlab-ce!24651

Note: updating version column after :updating is not ideal in the
updating -> update_erroed case. This will mean that the application now
records the version as the version that failed to upgrade, not the
version that it is currently on.

Add square css class

See merge request gitlab-org/gitlab-ce!24875

Add changelog

Rename word to query

User hash for limit

Do not allow control limit

Rename pluck names and add more specs

Resolve "Empty states for profile page"

Closes #28500

See merge request gitlab-org/gitlab-ce!24549

Allow merge request diffs to be placed into an object store

Closes #52568

See merge request gitlab-org/gitlab-ce!24276

Adds validation for schema_migration prior to truncate.

See merge request gitlab-org/gitlab-ce!6459

update js_regex 2.2.1 -> 3.1

See merge request gitlab-org/gitlab-ce!24433

This adds a conditional statement before truncating the
`schema_migrations` table.

This comit also ports this code to Rails 5.

Merge dev.gitlab.org master into GitLab.com master

Closes #54721, #56663, #2779, #2776, #2772, #2783, #2766, #2784, #2760, #2775, #2777, #2767, #2786, #2780, and #56860

See merge request gitlab-org/gitlab-ce!24935

Convert note_app_spec.js to Vue test utils

See merge request gitlab-org/gitlab-ce!24900

Externalize strings from `/app/views/email_rejection_mailer`

See merge request gitlab-org/gitlab-ce!24869

Resolve "Update project topics styling to use badges design"

Closes #54544

See merge request gitlab-org/gitlab-ce!24415

docs: improve OpenSSH installation on Windows options

See merge request gitlab-org/gitlab-ce!24206

Update User's last_activity_on for any GET request on projects

Closes #54947

See merge request gitlab-org/gitlab-ce!24642