This refactors the snippet creation mutation to use the declarative
authorization methods.

This makes a few changes that are nice-to-have now, and become more
important down the line:

- adds some missing types to resolvers (a cop violation)
- removes unnecessary field authorization (field authorization does not
  work like that)
- adds extras annotations for `lookahead` etc

Remove more instances of future tense from Development Guide

See merge request gitlab-org/gitlab!49888

Adds retry to git fetch in db:migrate job

See merge request gitlab-org/gitlab!49956

Refactor repository move logic from the Project model into concern

See merge request gitlab-org/gitlab!49225

Make the strategies env wrap

See merge request gitlab-org/gitlab!49951

Fix a misplaced comma in Threat Monitoring docs

See merge request gitlab-org/gitlab!49907

Improve licence details info

See merge request gitlab-org/gitlab!49920

Pipeline Graph Structural Update: Polling

See merge request gitlab-org/gitlab!49825

Bubbles up from stage to wrapper, through graph

Fix type rubocop on merge_requests_resolver.rb

See merge request gitlab-org/gitlab!49736

Remove future tense from the Testing Guide

See merge request gitlab-org/gitlab!49890

Remove future instances from the Development guide

See merge request gitlab-org/gitlab!49891

Reorder items on swimlanes sidebar

See merge request gitlab-org/gitlab!49877

Apply GitLab UI button styles to buttons in app/views/projects/graphs directory

See merge request gitlab-org/gitlab!44295

Garybell/gitlab 242029 migrate to glalert for callout

See merge request gitlab-org/gitlab!49732

Remove future tense from Frontend Guide

See merge request gitlab-org/gitlab!49898

Resolve "Apply GitLab UI button styles to buttons in app/views/projects directory"

See merge request gitlab-org/gitlab!49939

Add docs for add group member webhook

See merge request gitlab-org/gitlab!49905

Retries checkout as sporadic 500 and hang up errors occur
Relates to https://gitlab.com/gitlab-org/gitlab/-/issues/290851

Enable admin_new_user_signups_cap flag by default

See merge request gitlab-org/gitlab!49761

This change enables the admin_new_user_signups_cap feature flag by
default so the User Cap setting is displayed in the Admin area.

Clarify approval guidelines for dev doc changes

See merge request gitlab-org/gitlab!48148

Final revisions for clarity and conciseness.

Fix sidebar navigation for DAST Profiles

See merge request gitlab-org/gitlab!49719

Eliminate no_stats in value stream analytics

See merge request gitlab-org/gitlab!49936

Update Issuable Show app components to use with Requirements

See merge request gitlab-org/gitlab!49925

Enable gradual diffs load by default

See merge request gitlab-org/gitlab!49476

Enabled the graudal loading of diffs by default

Docs: Updated usage topic table head width and separated terms

See merge request gitlab-org/gitlab!49881

Set common spacing and removed column

Add field hasSolutions for Vulnerability

See merge request gitlab-org/gitlab!48820