Create GKE submit button component
What does this MR do?
It moves the logic to enable submit button in the GKE form to a component named: "gke_submit_button" and a getter named "hasValidData"
But why?
Because if we add more fields to the GKE cluster configuration form, we need to modify the machine type dropdown to control the logic of the form’s submit button. It will make the feature more maintainable.
Screenshots
No user-facing features are updated in this MR (backstage).