Doc: sync ES updates

See merge request gitlab-org/gitlab-ce!31883

Limit max index size for Snippet content

See merge request gitlab-org/gitlab-ee!15215

Expose finished_at for the Deployment entity

See merge request gitlab-org/gitlab-ce!31808

Merge branch '47003-user-onboarding-replace-current-email-confirmation-flow-with-a-soft-email-confirmation-flow' into 'master'

Soft email confirmation flow

Closes #47003

See merge request gitlab-org/gitlab-ce!31245

Add docs for rate limiter on raw endpoints

See merge request gitlab-org/gitlab-ce!31723

The section was included on security/raw_limits and on the admin area
settings.

Related to https://gitlab.com/gitlab-org/gitlab-ce/issues/48717

Adjust headers in /university

See merge request gitlab-org/gitlab-ce!31702

Update docs style for code blocks

Closes #65373

See merge request gitlab-org/gitlab-ce!31297

Clarify rules for code blocks, including spaces
above and below, and to use tilde when code blocks
contain triple backticks

Fix quarantined spec by waiting for requests

Closes #65329

See merge request gitlab-org/gitlab-ce!31862

Merge branch '11968-make-sure-not-to-redirect-to-the-onboarding-welcome-page-on-mobile-devices' into 'master'

Do not show the onboarding welcome page on mobile devices

Closes #11968

See merge request gitlab-org/gitlab-ee!14842

Resolve "Web IDE uncommitted files use wrong icon in tree"

Closes #61335

See merge request gitlab-org/gitlab-ce!31560

- Uses vue-test-utils
- More complete coverage with parameterized tests

Remove unused security fixtures EE

See merge request gitlab-org/gitlab-ee!15029

Note these fixtures have also been removed from the CE codebase.

Document cleanup of feature flag after deploy

See merge request gitlab-org/gitlab-ce!31893

Enable DAG support by default

Closes #65457

See merge request gitlab-org/gitlab-ce!31814

Rename License Management to License Compliance

See merge request gitlab-org/gitlab-ee!15163

Don't use go mod vendor

See merge request gitlab-org/gitlab-ce!31721

Add feature specs for multiple group issue boards

Closes #12619

See merge request gitlab-org/gitlab-ee!14973

Add feature specs for multiple issue boards for groups

[Backport] Add feature specs for multiple issue boards for groups

See merge request gitlab-org/gitlab-ce!31481

Add feature specs for multiple issue boards for groups

Add key unbinds to DiscussionKeyboardNavigator

See merge request gitlab-org/gitlab-ce!31857

Add a note about the lack of arm64 support

See merge request gitlab-org/gitlab-ce!31887

To avoid indexing timeout.
1 MB is chosen because it's repo file index limit,
and snippet will be migrated from database to repo.