Resolve "Cluster > Cluster details > Update automatically after cluster is created"

What does this MR do?

Changes the behavior of the clusters page to hide cluster details while in the "creating" state, and automatically refresh the page once it has been created.

This solves two problems:

1. previously the user could not access some cluster data while it was in this state, and a full page reload was necessary after creation to access it.
2. previously, the "Kubernetes cluster was successfully created..." banner would appear only for a second or two before disappearing due to a bug in the way this was handled

New behavior:

while creating	after creating

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Performance 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

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

Closes #50130 (closed) and #65151 (closed)