Cluster page > Disable the Save button if there are no edits to the form in Cluster details->GitLab integration

Summary

The Save button across the page is Enabled even when there are no changes to the forms on the page. We should make this more consistent with the Pajamas guidelines.

Steps to reproduce

• Go to Operations > Kubernetes on the left hand side navigation (in a project with clusters or on a group level cluster).
• Click on a cluster from the list.

What is the current bug behavior?

The Save button is constantly Enabled (Green) (even though when you land on the page there are no edits to the form.

What is the expected correct behavior?

The Save button should be disabled if there are no changes/edits in a form. When a user edits the form the Save button becomes enabled. That way, the user can track that there are unsaved changes to the form.

Relevant logs and/or screenshots