Created attachment 1861688 [details]
Screenshot

Description of the problem: When we execute a migration from the migration plan and it fails due to some reason, or it gets succeeded but with some warning, the cancel button does not disappear from the Migrations page and it is just disabled.

Severity: Low

Version-Release number of selected component (if applicable):
SOURCE CLUSTER: GCP 4.6 MTC 1.7.0
TARGET CLUSTER:  GCP 4.9 MTC 1.7.0

Steps to Reproduce: 
1. Create a project in source cluster 
$ oc new-project test
2. Deploy an application in source cluster
$ oc new-app cakephp-mysql-persistent
3. Break connection with registry 
oc patch configs.imageregistry.operator.openshift.io cluster -p '{"spec":{"managementState": "Unmanaged"} }' --type='merge';

Oc -n openshift-image-registry patch service image-registry -p '{"spec":{"selector": {"docker-registry": "defaultX"}} }' --type='merge';

3. Create a migplan from UI using the project
4. Run Cutover migration.
5. After it fails, go to the Migrations page for that migplan.

Actual Result:  Cancel button is not yet disappeared from there and just got disabled.

Expected Result: Cancel button should disappear from there as it happens in other successful or cancelled migrations.