Migrate admin runner list from HAML to Vue [RUN ALL RSPEC] [RUN AS-IF-FOSS]

What does this MR do?

This MR defines a new feature flag: runner_list_view_vue_ui that renders the runner administrator using Vue and GraphQL, part of #329658 (closed).

☝ This MR is large: It defines the new feature flag and ports the main features of the Runners list, as much of these features are relatively simple and they follow the layout almost exactly I think it's possible to port in fewer steps. Also, not all features have been ported, please see #329658 (closed) for a full list.

⚠ Depends on !61174 (merged) and requires runner_graphql_query to be enabled.

Screenshots (strongly suggested)

runner_list_view_vue_ui OFF	runner_list_view_vue_ui ON

Does this MR meet the acceptance criteria?

Conformity

• 📋 Does this MR need a changelog?
  • I have included a changelog entry.
  • I have not included a changelog entry because this change is behind a feature flag.
• [-] Documentation (if required)
• [-] Code review guidelines
• Merge request performance guidelines
• Style guides
• [-] Database guides
• [-] Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers
• Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team

Related to #329658 (closed)