utility alias cropped_censoring -> out-of-frame_censoring

BUR #55415 has been approved by @nonamethanks.

create alias cropped_censoring -> out-of-frame_censoring

matches the cropped tag

Cropped censoring implies there's a full version of the image showing the censored parts whereas most out-of-frame censoring is intentional and there isn't more to the image.

Bernkastel83 said in forum #420513:

Cropped censoring implies there's a full version of the image showing the censored parts whereas most out-of-frame censoring is intentional and there isn't more to the image.

but that is the case sometimes post #10873262

The bulk update request #55415 (forum #420508) has been approved by @nonamethanks.

Makes sense for those who aren't aware of our name for this concept.