Adds and refactors the rspec code around static frontend tests.
Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

Resolve "MAU for Snippet Views"

See merge request gitlab-org/gitlab!48113

Add deterministic ordering to roulette assignment table

See merge request gitlab-org/gitlab!48391

Merge branch '229621-new-epic-button-in-epic-list-should-direct-the-user-to-a-full-epic-creation-page' into 'master'

New epic button in epic list should direct the user to a full epic creation page

See merge request gitlab-org/gitlab!37126

- Update screenshots
- Update instructions
- Fix links

Fix date range filters on audit event export

See merge request gitlab-org/gitlab!48432

Fix issue "blocked by" modal

See merge request gitlab-org/gitlab!48273

There are two "blocked by" modals on the issue page, and the older
one is not functional due to a recent update of the issue header
from Haml to Vue. This commit fixes this by making the issue page
use the same modal and sharing more state and behaviour between
different Vue apps on the issue page.

Add epic autocompletion to GfmAutocomplete component

See merge request gitlab-org/gitlab!48255

Add epic autocompletion as part of migrating from jQuery-based
at.js to tribute

Fix deprecation warning in ContainerRepository

See merge request gitlab-org/gitlab!48384

Fix alert details sidebar assignee CSS

See merge request gitlab-org/gitlab!48285

In this commit we add the logic to track the snippets
show action

Performance Improvements for the Epic View

See merge request gitlab-org/gitlab!48454

Truncate vulnerability title if longer than 255 characters

See merge request gitlab-org/gitlab!48327

Retain spinner when applying MR suggestions

See merge request gitlab-org/gitlab!46203

Prettify billing plans section

See merge request gitlab-org/gitlab!48008

Just a bunch of improvements for the billing plans section
like changing Bootstrap utility classes to GitLab UI and
fixing the issue with the free plan not being highlighted.

Refactor usages of Geo RequestService

See merge request gitlab-org/gitlab!48420

StartupJS Loading of Epic Discussions
Better Init
Removed double rendering

Add danger alert for misplaced changelogs with db changes

See merge request gitlab-org/gitlab!48401

- for db changes we should always be in non ee.

Revert "Add short SHA destination to build_assets_image"

See merge request gitlab-org/gitlab!48399

Remove .issue-box from Issuable list Vue.js App

See merge request gitlab-org/gitlab!47999

Docs: Work-around missing wildcard DNS entry

See merge request gitlab-org/gitlab!48258

The current export has two problems:

- Ending time (i.e. in `created_before`) is set to the start of the day
  (00:00:00), instead of the end of the day (23:59:59). This results in
  a lot of missing events.

- If date range params are not provided, it returns the first 100,000
  events ordered by `created_at`, instead of constraining to only a
  month worth of data like in the search UI.

This change addresses the above issue and, as a result, ensures the
exported content matches with the one presented in the search UI.

Fixed clone repo dropdown toggle border

See merge request gitlab-org/gitlab!48367

Improve pipeline security tab filter logic

See merge request gitlab-org/gitlab!47721

Steal MigrateU2fWebauthn background migration

See merge request gitlab-org/gitlab!46179

Remove .issue-box from static (classic) Issuable list

See merge request gitlab-org/gitlab!47998

Remove .issue-box element from Epics (list)

See merge request gitlab-org/gitlab!48000

Fix repository clone panel for wikis

See merge request gitlab-org/gitlab!47676

Resolve "Improve "squash_before_merge" to utilize GlFormCheckbox"

See merge request gitlab-org/gitlab!48338

Remove unused feature flag to fix broken master

See merge request gitlab-org/gitlab!48438

Fix documentation issues in SAML SSO docs

See merge request gitlab-org/gitlab!48380