Improve iteration group by label UI

See merge request gitlab-org/gitlab!52009

- Adds issue's labels to label grouping list
- Adds light gray background to label grouping list
- Fixes scoped label rendering
- Adds page specific CSS to override GlLabel style in GlAlert

Discussion of UI changes:
https://gitlab.com/gitlab-org/gitlab/-/merge_requests/51113#note_485816203

Simplify test and add wait and retry logics

See merge request gitlab-org/gitlab!53794

Automatically vendored project templates / express 2021-02-08

See merge request gitlab-org/gitlab!53633

Automatically vendored project templates / dotnetcore 2021-02-08

See merge request gitlab-org/gitlab!53652

Allow uploads from empty repo state [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!52755

Add page specific styles to project discover security page

See merge request gitlab-org/gitlab!54460

Lower SAML SSO session expiry to one day

See merge request gitlab-org/gitlab!54374

Add Auto DevOps link to manual process pages

See merge request gitlab-org/gitlab!54470

Ensure manual pages have link to Auto DevOps page.

Skip orphaned pool repositories on restore

See merge request gitlab-org/gitlab!54112

Docs: Link release page at end of upgrade path

See merge request gitlab-org/gitlab!54436

Update docs regarding Web IDE themes

See merge request gitlab-org/gitlab!52946

Deleted doc/user/project/web_ide/img/solarized_light_theme_v13_0.png

Add information in regards to the cilium alerts

See merge request gitlab-org/gitlab!54024

module besides the existing docs related to
GitOps. Common sections got extracted as common
steps

Handle GlobalIDs with invalid resource names

See merge request gitlab-org/gitlab!54290

Experiment - Add specific tracking for invite members b variant

See merge request gitlab-org/gitlab!54107

- to allow tracking funnel exactness for experimentation.

Direct readers to issue instead of removed section

See merge request gitlab-org/gitlab!54289

Add preliminary badging to Ecosystem docset

See merge request gitlab-org/gitlab!53529

Add MTTM to Merge request analytics docs

See merge request gitlab-org/gitlab!53956

Lift the NPM package naming convention for the project level API

See merge request gitlab-org/gitlab!53266

gitaly: Use `#blank?` to check whether the hook env is populated

See merge request gitlab-org/gitlab!54438

Revert "Merge branch 'id-restrict-protected-rules' into 'master'"

See merge request gitlab-org/gitlab!54451

For the project level Package Manager API.

At the instance level, the API will only return packages that follow
the naming convention.

Documentation: https://docs.gitlab.com/ee/user/packages/npm_registry/#package-naming-convention

Improve at.js members autocomplete matching

See merge request gitlab-org/gitlab!54072

When searching for a user, e.g. `@win`, users whose
name OR username starts with `win` are shown as
the top result in the autocomplete menu.

This commit also increases the results list from 5 to 10
for members autocomplete.

Check if maintenance_mode setting is available

See merge request gitlab-org/gitlab!54439

Add instructions on MR dependencies to code review

Also clarify guidance on checking related issues for blockers

See merge request gitlab-org/gitlab!53876

Assign groups to unowned feature flags

See merge request gitlab-org/gitlab!54442

Query statistics for migration testing

See merge request gitlab-org/gitlab!54254

Add remaining metrics from event dictionary to metric yml files

See merge request gitlab-org/gitlab!54332