Description of problem:

In both multiregion  as well as non multiregion ROSA wizard definitions, user has able to bypass the validation on "Global unique name" for both Cluster name and domain prefix fields. i.e. user could able to enter the duplicated cluster name or domain prefix from same region and could proceed to next step. This is happening when user manoeuvre quickly between steps.Probably because of slowness in validation seems to be the probable culprit here.

See the attached recording Screencast from 2024-08-01 12-18-10.mp4

How reproducible:
always

Steps to Reproduce:

1. Open OCM UI staging using https://console.dev.redhat.com/openshift/?multiregion=true  or non multiregion env.
2. Launch ROSA wizard and select control plane type as "Hosted".
3. Reach to "Cluster settings" step.
4. Select a region.
5. Type duplicated cluster name in cluster name(available in same region) field and click "Next" button.
6. Repeat the step with duplicated domain prefix(available in same region) field and click "Next" button.
7. See the behavior.

Actual results:

In both step 5 & 6, the global unique name validation didn't throw error and it is probably due to slow validation vs quick user manoeuvre to next step. 
Note: This is not happening with previous wizard definitions and could be something to do with latest changes on OCMUI-1657 **

Expected results:

The Global unique name validation should throw and block user to proceed to next step when there are duplicated domain prefix or cluster name found in respective region.