[Task] Implement bell notification for 'push image to cluster'

[gbraad]

This issue is a follow-up to the temporary solution proposed in: #190, related to #185

We prefer not to show a modal dialog, but allow people to track progress and completion from the bell icon list.

[deboer-tim]

FWIW, this is one of the reasons that I think we should have an API for pushing images [1] and a single action that works for any provider that does it - it wouldn't be up to each provider to decide on progress/notifications, nor would there be differences.

[1] containers/podman-desktop#2623