Add 'Apply to all' and 'Cancel Deploy' option to Unsubscribed Content dialog

In the following dialog it would be good to have a apply to all tick box so that we don’t have to click this potentially 100 times when doing a bulk deploy to get a sandbox up to the state of a git branch.

If you know there are hundreds of unsubscribed metadata items there is currently no way to cancel then add that metadata to the subscribed list and rerun the deployment.