Add back one-click approve/deny on edit user page.

[dparker1005]

In PMPro Approvals version 1.5, we swapped out the one-click Approve | Deny links on the Edit User page for a link to the approvals list. This change was made to add MMPU compatibility for the plugin.

It would be nice to add back the one-click option in a MMPU-compatible way in the future. This would likely involve showing separate approve/deny buttons per level that a user is pending for.

In the meantime, we have a code recipe here to add back the old functionality for sites that need the one-click option (though this is not MMPU-compatible):
https://gist.github.com/dparker1005/2b29b20a6eb1dc247423ad622fcb22c7

[andrewlimaza]

Maybe we can get smart about this. If there's only one level for approval, show an inline solution but if there's more than one move to the "Manage Approval Status".