Platform: Silence individual schema change approval notifications after first one

[dkelly-airbyte]

Describe the feature request
Customer would like the ability to receive 1 schema change approval notification and then silence any subsequent notifications for the same change.

Describe the solution you'd like
Customer would like a UI element that allows the user to indicate that the notification should be ignored.

Describe alternatives you've considered
N/.A

Additional context
N/A