Simplified repeater copy/clone UI flow

[elabx]

As much as I really like all the options that repeaters give when copy/cloning items, I feel it's really overwhelming for the commonfolk editor who in general finds it easier to sort again whatever is pasted at the end of the repeaters than deciding between copy to memory, cloning up, cloning bellow.

1.- Copy repeater item with copy icon
2.- Notification that the repeater has been copied (if a repeater matrix, would be nice to show what type has been copied, not just the id since the ID is always invisible to the editor)
2.- Click "Paste item" link that shows up at the bottom of the repeater types/Add new section.