Revisions to bring the page closer to GitLab tone and style.

Fixes grammar errors in the SAST documentation

See merge request gitlab-org/gitlab!47024

Extract welcome page from registration controller

See merge request gitlab-org/gitlab!46830

Fix remove label inconsistency

See merge request gitlab-org/gitlab!46805

There is a bug where if on the issue page you:

1. Add a label via the /label quick action
2. Remove a label by clicking on the label `x` on the sidebar

Then the label added in 1. is also removed. This commit fixes this.

Add projects_with_enabled_alert_integrations usage ping

See merge request gitlab-org/gitlab!46693

Add paragraph for AutoDevOps and secure in offline environment

See merge request gitlab-org/gitlab!46898

Update details about version text

See merge request gitlab-org/gitlab!46650

Docs: Remove ultimate flag for Secret Detection

See merge request gitlab-org/gitlab!46993

Add graphql API for creating labels

See merge request gitlab-org/gitlab!46534

Allows creating project and group labels using graphql API.

Note Okta SAML much match for SCIM to work

See merge request gitlab-org/gitlab!47016

Clarify how to chose the correct agentk version

See merge request gitlab-org/gitlab!46972

Docs: Edited PyPI topic

See merge request gitlab-org/gitlab!47022

Related to: https://gitlab.com/gitlab-org/gitlab/-/issues/247950

Issue templates: Link Feature Proposals to SSoT about labels

See merge request gitlab-org/gitlab!46655

Merge branch '273205-make-basic-security-mr-widget-available-to-starter-premium-users' into 'master'

Make basic security MR widget available to Starter/Premium users

See merge request gitlab-org/gitlab!46458

This makes the CE security MR widget visible for Starter and Premium
users, and also Free tier users on `.com`.

Addresses https://gitlab.com/gitlab-org/gitlab/-/issues/273205, part of
https://gitlab.com/groups/gitlab-org/-/epics/4394.

Fix documentation typo in frontend_testing.md

See merge request gitlab-org/gitlab!47004

Update documentation for Kubernetes and DinD case for mirroring

See merge request gitlab-org/gitlab!46612

Redo reverted Assignee filter change for MergeRequest

See merge request gitlab-org/gitlab!45738

This reverts merge request !45602

Add service to import Requirements from a CSV file

See merge request gitlab-org/gitlab!46361

Update markup for proper tracking

See merge request gitlab-org/gitlab!46815

Update blob viewer e2e test

See merge request gitlab-org/gitlab!46302

This change has two aims:
1. To fix some flakiness that recently appeared
2. To restore the test of creating a file via the blob viewer

- Uses specific predicate methods to check for content instead of
  checking the entire page. This also implicitly waits for loading to
  complete, which should make the test more reliable.
- Reverts Resource::File to create a new file via the blob viewer,
  after initializing the project with a readme.
- Removes some unused code.
- Adds a page object component for the flash notice that appears on
  many pages.

Add tooltips to design buttons

See merge request gitlab-org/gitlab!46922

Issuable List: Add support for bulk editing sidebar

See merge request gitlab-org/gitlab!46788

Docs link to usage ping troubleshooting

See merge request gitlab-org/gitlab!46963

Moved the performance scripts

See merge request gitlab-org/gitlab!46970

Add loading icon to group members view

See merge request gitlab-org/gitlab!46850