Geo Status Page 2.0 - Remove Actions

What does this MR do?

Part 2 of 2 for #327647 (closed)

This change is behind a feature flag (:geo_nodes_beta)

This change adds the Remove action for the new Geo Nodes Beta View.

This is done by staging a node to be removed in the Vuex store and showing a warning modal. Once the user confirms, the node is removed.

How to test

1. Set up a Geo Primary/Secondary GDK
2. Fetch the current branch
3. Activate the Feature Flag on your Primary GDK (:geo_nodes_beta)
4. Navigate to http://127.0.0.1:3000/admin/geo/nodes_beta
5. View UI

Screenshots (strongly suggested)

Remove on Desktop

Remove on Mobile

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 the 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 #327647 (closed)