Feature: #74179 - Page Module Drag & Drop Can Do Copies Via CTRL Key Now

See forge#74179


Additionally to the usual drag and drop in the page module, that was able to move content elements from position A to B, you can do copies via drag & drop now. Just press the CTRL-key while dropping to create a copy of the dragged element at the drop zone position. After dropping is finished the page module will reload to make sure the new element will be generated with all necessary information.